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Finding the Fourth Proportional to 636,301.77, 878,088.56 and 349,819.35

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Solution

The fourth proportional to 636,301.77, 878,088.56 and 349,819.35 is: 482,746.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,301.77 : 878,088.56 = 349,819.35 : x
  2. Step 2: Convert to fraction form
    636,301.77/878,088.56 = 349,819.35/x
  3. Step 3: Cross multiply
    636,301.77x = 878,088.56 × 349,819.35
  4. Step 4: Simplify right side
    636,301.77x = 307,172,369,301.64
  5. Step 5: Solve for x
    x = 307,172,369,301.64/636,301.77
  6. Step 6: Final answer
    x = 482,746.37

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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.