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Finding the Fourth Proportional to 575,324.40, 862,403.40 and 338,545.20

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Solution

The fourth proportional to 575,324.40, 862,403.40 and 338,545.20 is: 507,474.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,324.40 : 862,403.40 = 338,545.20 : x
  2. Step 2: Convert to fraction form
    575,324.40/862,403.40 = 338,545.20/x
  3. Step 3: Cross multiply
    575,324.40x = 862,403.40 × 338,545.20
  4. Step 4: Simplify right side
    575,324.40x = 291,962,531,533.68
  5. Step 5: Solve for x
    x = 291,962,531,533.68/575,324.40
  6. Step 6: Final answer
    x = 507,474.62

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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.