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Finding the Fourth Proportional to 539,463.78, 744,407.01 and 297,730.74

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Solution

The fourth proportional to 539,463.78, 744,407.01 and 297,730.74 is: 410,839.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,463.78 : 744,407.01 = 297,730.74 : x
  2. Step 2: Convert to fraction form
    539,463.78/744,407.01 = 297,730.74/x
  3. Step 3: Cross multiply
    539,463.78x = 744,407.01 × 297,730.74
  4. Step 4: Simplify right side
    539,463.78x = 221,632,848,552.72
  5. Step 5: Solve for x
    x = 221,632,848,552.72/539,463.78
  6. Step 6: Final answer
    x = 410,839.16

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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.