Home / 1,119,502.40-1,679,253.60-409,602.20

Finding the Fourth Proportional to 1,119,502.40, 1,679,253.60 and 409,602.20

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Solution

The fourth proportional to 1,119,502.40, 1,679,253.60 and 409,602.20 is: 614,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,502.40 : 1,679,253.60 = 409,602.20 : x
  2. Step 2: Convert to fraction form
    1,119,502.40/1,679,253.60 = 409,602.20/x
  3. Step 3: Cross multiply
    1,119,502.40x = 1,679,253.60 × 409,602.20
  4. Step 4: Simplify right side
    1,119,502.40x = 687,825,968,917.92
  5. Step 5: Solve for x
    x = 687,825,968,917.92/1,119,502.40
  6. Step 6: Final answer
    x = 614,403.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.