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Finding the Fourth Proportional to 539,138.15, 744,011.42 and 297,420.24

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Solution

The fourth proportional to 539,138.15, 744,011.42 and 297,420.24 is: 410,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,138.15 : 744,011.42 = 297,420.24 : x
  2. Step 2: Convert to fraction form
    539,138.15/744,011.42 = 297,420.24/x
  3. Step 3: Cross multiply
    539,138.15x = 744,011.42 × 297,420.24
  4. Step 4: Simplify right side
    539,138.15x = 221,284,053,612.04
  5. Step 5: Solve for x
    x = 221,284,053,612.04/539,138.15
  6. Step 6: Final answer
    x = 410,440.36

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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.