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Finding the Fourth Proportional to 642,957.98, 964,597.37 and 453,787.88

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Solution

The fourth proportional to 642,957.98, 964,597.37 and 453,787.88 is: 680,795.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,957.98 : 964,597.37 = 453,787.88 : x
  2. Step 2: Convert to fraction form
    642,957.98/964,597.37 = 453,787.88/x
  3. Step 3: Cross multiply
    642,957.98x = 964,597.37 × 453,787.88
  4. Step 4: Simplify right side
    642,957.98x = 437,722,588,493.95
  5. Step 5: Solve for x
    x = 437,722,588,493.95/642,957.98
  6. Step 6: Final answer
    x = 680,795.02

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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.