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Finding the Fourth Proportional to 635,891.20, 877,529.65 and 349,429.74

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Solution

The fourth proportional to 635,891.20, 877,529.65 and 349,429.74 is: 482,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,891.20 : 877,529.65 = 349,429.74 : x
  2. Step 2: Convert to fraction form
    635,891.20/877,529.65 = 349,429.74/x
  3. Step 3: Cross multiply
    635,891.20x = 877,529.65 × 349,429.74
  4. Step 4: Simplify right side
    635,891.20x = 306,634,957,441.79
  5. Step 5: Solve for x
    x = 306,634,957,441.79/635,891.20
  6. Step 6: Final answer
    x = 482,212.93

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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.