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Finding the Fourth Proportional to 443,654.71, 612,539.13 and 262,424.86

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Solution

The fourth proportional to 443,654.71, 612,539.13 and 262,424.86 is: 362,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,654.71 : 612,539.13 = 262,424.86 : x
  2. Step 2: Convert to fraction form
    443,654.71/612,539.13 = 262,424.86/x
  3. Step 3: Cross multiply
    443,654.71x = 612,539.13 × 262,424.86
  4. Step 4: Simplify right side
    443,654.71x = 160,745,495,434.77
  5. Step 5: Solve for x
    x = 160,745,495,434.77/443,654.71
  6. Step 6: Final answer
    x = 362,321.17

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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.