Home / 1,099,309.40-1,648,004.10-425,850.20

Finding the Fourth Proportional to 1,099,309.40, 1,648,004.10 and 425,850.20

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Solution

The fourth proportional to 1,099,309.40, 1,648,004.10 and 425,850.20 is: 638,403.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,309.40 : 1,648,004.10 = 425,850.20 : x
  2. Step 2: Convert to fraction form
    1,099,309.40/1,648,004.10 = 425,850.20/x
  3. Step 3: Cross multiply
    1,099,309.40x = 1,648,004.10 × 425,850.20
  4. Step 4: Simplify right side
    1,099,309.40x = 701,802,875,585.82
  5. Step 5: Solve for x
    x = 701,802,875,585.82/1,099,309.40
  6. Step 6: Final answer
    x = 638,403.42

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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.