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Finding the Fourth Proportional to 642,062.96, 962,568.76 and 242,476.88

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Solution

The fourth proportional to 642,062.96, 962,568.76 and 242,476.88 is: 363,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,062.96 : 962,568.76 = 242,476.88 : x
  2. Step 2: Convert to fraction form
    642,062.96/962,568.76 = 242,476.88/x
  3. Step 3: Cross multiply
    642,062.96x = 962,568.76 × 242,476.88
  4. Step 4: Simplify right side
    642,062.96x = 233,400,669,710.27
  5. Step 5: Solve for x
    x = 233,400,669,710.27/642,062.96
  6. Step 6: Final answer
    x = 363,516.80

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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.