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Finding the Fourth Proportional to 661,594.42, 912,663.82 and 432,285.85

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Solution

The fourth proportional to 661,594.42, 912,663.82 and 432,285.85 is: 596,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,594.42 : 912,663.82 = 432,285.85 : x
  2. Step 2: Convert to fraction form
    661,594.42/912,663.82 = 432,285.85/x
  3. Step 3: Cross multiply
    661,594.42x = 912,663.82 × 432,285.85
  4. Step 4: Simplify right side
    661,594.42x = 394,531,655,192.95
  5. Step 5: Solve for x
    x = 394,531,655,192.95/661,594.42
  6. Step 6: Final answer
    x = 596,334.62

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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.