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Finding the Fourth Proportional to 635,680.62, 877,246.50 and 345,294.86

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Solution

The fourth proportional to 635,680.62, 877,246.50 and 345,294.86 is: 476,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,680.62 : 877,246.50 = 345,294.86 : x
  2. Step 2: Convert to fraction form
    635,680.62/877,246.50 = 345,294.86/x
  3. Step 3: Cross multiply
    635,680.62x = 877,246.50 × 345,294.86
  4. Step 4: Simplify right side
    635,680.62x = 302,908,703,016.76
  5. Step 5: Solve for x
    x = 302,908,703,016.76/635,680.62
  6. Step 6: Final answer
    x = 476,510.83

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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.