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Finding the Fourth Proportional to 602,482.86, 831,208.17 and 395,862.55

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Solution

The fourth proportional to 602,482.86, 831,208.17 and 395,862.55 is: 546,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,482.86 : 831,208.17 = 395,862.55 : x
  2. Step 2: Convert to fraction form
    602,482.86/831,208.17 = 395,862.55/x
  3. Step 3: Cross multiply
    602,482.86x = 831,208.17 × 395,862.55
  4. Step 4: Simplify right side
    602,482.86x = 329,044,185,757.03
  5. Step 5: Solve for x
    x = 329,044,185,757.03/602,482.86
  6. Step 6: Final answer
    x = 546,146.97

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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.