Home / 742,847.68-1,025,101.28-403,308.48

Finding the Fourth Proportional to 742,847.68, 1,025,101.28 and 403,308.48

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Solution

The fourth proportional to 742,847.68, 1,025,101.28 and 403,308.48 is: 556,550.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,847.68 : 1,025,101.28 = 403,308.48 : x
  2. Step 2: Convert to fraction form
    742,847.68/1,025,101.28 = 403,308.48/x
  3. Step 3: Cross multiply
    742,847.68x = 1,025,101.28 × 403,308.48
  4. Step 4: Simplify right side
    742,847.68x = 413,432,039,082.85
  5. Step 5: Solve for x
    x = 413,432,039,082.85/742,847.68
  6. Step 6: Final answer
    x = 556,550.22

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Double scale
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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.