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Finding the Fourth Proportional to 635,909.68, 877,545.38 and 349,423.61

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Solution

The fourth proportional to 635,909.68, 877,545.38 and 349,423.61 is: 482,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,909.68 : 877,545.38 = 349,423.61 : x
  2. Step 2: Convert to fraction form
    635,909.68/877,545.38 = 349,423.61/x
  3. Step 3: Cross multiply
    635,909.68x = 877,545.38 × 349,423.61
  4. Step 4: Simplify right side
    635,909.68x = 306,635,077,685.84
  5. Step 5: Solve for x
    x = 306,635,077,685.84/635,909.68
  6. Step 6: Final answer
    x = 482,199.11

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1.5x scale

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.