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Finding the Fourth Proportional to 636,165.13, 877,898.04 and 349,679.06

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Solution

The fourth proportional to 636,165.13, 877,898.04 and 349,679.06 is: 482,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,165.13 : 877,898.04 = 349,679.06 : x
  2. Step 2: Convert to fraction form
    636,165.13/877,898.04 = 349,679.06/x
  3. Step 3: Cross multiply
    636,165.13x = 877,898.04 × 349,679.06
  4. Step 4: Simplify right side
    636,165.13x = 306,982,561,403.04
  5. Step 5: Solve for x
    x = 306,982,561,403.04/636,165.13
  6. Step 6: Final answer
    x = 482,551.69

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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.