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Finding the Fourth Proportional to 768,287.02, 1,060,253.06 and 424,122.13

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Solution

The fourth proportional to 768,287.02, 1,060,253.06 and 424,122.13 is: 585,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,287.02 : 1,060,253.06 = 424,122.13 : x
  2. Step 2: Convert to fraction form
    768,287.02/1,060,253.06 = 424,122.13/x
  3. Step 3: Cross multiply
    768,287.02x = 1,060,253.06 × 424,122.13
  4. Step 4: Simplify right side
    768,287.02x = 449,676,781,374.98
  5. Step 5: Solve for x
    x = 449,676,781,374.98/768,287.02
  6. Step 6: Final answer
    x = 585,297.90

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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.