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Finding the Fourth Proportional to 637,768.50, 880,056.65 and 392,713.97

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Solution

The fourth proportional to 637,768.50, 880,056.65 and 392,713.97 is: 541,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,768.50 : 880,056.65 = 392,713.97 : x
  2. Step 2: Convert to fraction form
    637,768.50/880,056.65 = 392,713.97/x
  3. Step 3: Cross multiply
    637,768.50x = 880,056.65 × 392,713.97
  4. Step 4: Simplify right side
    637,768.50x = 345,610,534,482.55
  5. Step 5: Solve for x
    x = 345,610,534,482.55/637,768.50
  6. Step 6: Final answer
    x = 541,905.93

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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.