Home / 493,445.52-680,966.19-278,587.35

Finding the Fourth Proportional to 493,445.52, 680,966.19 and 278,587.35

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Solution

The fourth proportional to 493,445.52, 680,966.19 and 278,587.35 is: 384,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,445.52 : 680,966.19 = 278,587.35 : x
  2. Step 2: Convert to fraction form
    493,445.52/680,966.19 = 278,587.35/x
  3. Step 3: Cross multiply
    493,445.52x = 680,966.19 × 278,587.35
  4. Step 4: Simplify right side
    493,445.52x = 189,708,566,311.70
  5. Step 5: Solve for x
    x = 189,708,566,311.70/493,445.52
  6. Step 6: Final answer
    x = 384,456.96

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1.5x scale

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.