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Finding the Fourth Proportional to 508,068.84, 701,070.56 and 278,565.74

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Solution

The fourth proportional to 508,068.84, 701,070.56 and 278,565.74 is: 384,385.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,068.84 : 701,070.56 = 278,565.74 : x
  2. Step 2: Convert to fraction form
    508,068.84/701,070.56 = 278,565.74/x
  3. Step 3: Cross multiply
    508,068.84x = 701,070.56 × 278,565.74
  4. Step 4: Simplify right side
    508,068.84x = 195,294,239,338.61
  5. Step 5: Solve for x
    x = 195,294,239,338.61/508,068.84
  6. Step 6: Final answer
    x = 384,385.39

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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.