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Finding the Fourth Proportional to 636,014.91, 877,701.23 and 349,528.84

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Solution

The fourth proportional to 636,014.91, 877,701.23 and 349,528.84 is: 482,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,014.91 : 877,701.23 = 349,528.84 : x
  2. Step 2: Convert to fraction form
    636,014.91/877,701.23 = 349,528.84/x
  3. Step 3: Cross multiply
    636,014.91x = 877,701.23 × 349,528.84
  4. Step 4: Simplify right side
    636,014.91x = 306,781,892,788.47
  5. Step 5: Solve for x
    x = 306,781,892,788.47/636,014.91
  6. Step 6: Final answer
    x = 482,350.16

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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.