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Finding the Fourth Proportional to 539,135.15, 744,007.28 and 297,417.24

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Solution

The fourth proportional to 539,135.15, 744,007.28 and 297,417.24 is: 410,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,135.15 : 744,007.28 = 297,417.24 : x
  2. Step 2: Convert to fraction form
    539,135.15/744,007.28 = 297,417.24/x
  3. Step 3: Cross multiply
    539,135.15x = 744,007.28 × 297,417.24
  4. Step 4: Simplify right side
    539,135.15x = 221,280,590,270.42
  5. Step 5: Solve for x
    x = 221,280,590,270.42/539,135.15
  6. Step 6: Final answer
    x = 410,436.22

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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.