Home / 749,416.92-1,034,195.40-409,885.20

Finding the Fourth Proportional to 749,416.92, 1,034,195.40 and 409,885.20

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Solution

The fourth proportional to 749,416.92, 1,034,195.40 and 409,885.20 is: 565,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,416.92 : 1,034,195.40 = 409,885.20 : x
  2. Step 2: Convert to fraction form
    749,416.92/1,034,195.40 = 409,885.20/x
  3. Step 3: Cross multiply
    749,416.92x = 1,034,195.40 × 409,885.20
  4. Step 4: Simplify right side
    749,416.92x = 423,901,388,368.08
  5. Step 5: Solve for x
    x = 423,901,388,368.08/749,416.92
  6. Step 6: Final answer
    x = 565,641.60

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.