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Finding the Fourth Proportional to 424,468.32, 636,966 and 247,054.56

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Solution

The fourth proportional to 424,468.32, 636,966 and 247,054.56 is: 370,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,468.32 : 636,966 = 247,054.56 : x
  2. Step 2: Convert to fraction form
    424,468.32/636,966 = 247,054.56/x
  3. Step 3: Cross multiply
    424,468.32x = 636,966 × 247,054.56
  4. Step 4: Simplify right side
    424,468.32x = 157,365,354,864.96
  5. Step 5: Solve for x
    x = 157,365,354,864.96/424,468.32
  6. Step 6: Final answer
    x = 370,735.22

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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.