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Finding the Fourth Proportional to 490,081.92, 676,569.92 and 329,779.84

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Solution

The fourth proportional to 490,081.92, 676,569.92 and 329,779.84 is: 455,269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,081.92 : 676,569.92 = 329,779.84 : x
  2. Step 2: Convert to fraction form
    490,081.92/676,569.92 = 329,779.84/x
  3. Step 3: Cross multiply
    490,081.92x = 676,569.92 × 329,779.84
  4. Step 4: Simplify right side
    490,081.92x = 223,119,119,966.41
  5. Step 5: Solve for x
    x = 223,119,119,966.41/490,081.92
  6. Step 6: Final answer
    x = 455,269.03

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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.