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Finding the Fourth Proportional to 642,092.52, 964,081.90 and 630,752.92

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Solution

The fourth proportional to 642,092.52, 964,081.90 and 630,752.92 is: 947,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,092.52 : 964,081.90 = 630,752.92 : x
  2. Step 2: Convert to fraction form
    642,092.52/964,081.90 = 630,752.92/x
  3. Step 3: Cross multiply
    642,092.52x = 964,081.90 × 630,752.92
  4. Step 4: Simplify right side
    642,092.52x = 608,097,473,544.15
  5. Step 5: Solve for x
    x = 608,097,473,544.15/642,092.52
  6. Step 6: Final answer
    x = 947,055.84

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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.