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Finding the Fourth Proportional to 704,898.79, 972,761.30 and 382,608.95

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Solution

The fourth proportional to 704,898.79, 972,761.30 and 382,608.95 is: 528,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,898.79 : 972,761.30 = 382,608.95 : x
  2. Step 2: Convert to fraction form
    704,898.79/972,761.30 = 382,608.95/x
  3. Step 3: Cross multiply
    704,898.79x = 972,761.30 × 382,608.95
  4. Step 4: Simplify right side
    704,898.79x = 372,187,179,593.64
  5. Step 5: Solve for x
    x = 372,187,179,593.64/704,898.79
  6. Step 6: Final answer
    x = 528,000.88

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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.