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Finding the Fourth Proportional to 704,715.76, 972,510.30 and 382,425.78

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Solution

The fourth proportional to 704,715.76, 972,510.30 and 382,425.78 is: 527,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,715.76 : 972,510.30 = 382,425.78 : x
  2. Step 2: Convert to fraction form
    704,715.76/972,510.30 = 382,425.78/x
  3. Step 3: Cross multiply
    704,715.76x = 972,510.30 × 382,425.78
  4. Step 4: Simplify right side
    704,715.76x = 371,913,010,035.53
  5. Step 5: Solve for x
    x = 371,913,010,035.53/704,715.76
  6. Step 6: Final answer
    x = 527,748.96

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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.