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Finding the Fourth Proportional to 641,703.42, 962,231.13 and 375,543.90

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Solution

The fourth proportional to 641,703.42, 962,231.13 and 375,543.90 is: 563,126.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,703.42 : 962,231.13 = 375,543.90 : x
  2. Step 2: Convert to fraction form
    641,703.42/962,231.13 = 375,543.90/x
  3. Step 3: Cross multiply
    641,703.42x = 962,231.13 × 375,543.90
  4. Step 4: Simplify right side
    641,703.42x = 361,360,031,261.61
  5. Step 5: Solve for x
    x = 361,360,031,261.61/641,703.42
  6. Step 6: Final answer
    x = 563,126.24

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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.