Home / 761,660.27-1,142,241.39-256,085.55

Finding the Fourth Proportional to 761,660.27, 1,142,241.39 and 256,085.55

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Solution

The fourth proportional to 761,660.27, 1,142,241.39 and 256,085.55 is: 384,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,660.27 : 1,142,241.39 = 256,085.55 : x
  2. Step 2: Convert to fraction form
    761,660.27/1,142,241.39 = 256,085.55/x
  3. Step 3: Cross multiply
    761,660.27x = 1,142,241.39 × 256,085.55
  4. Step 4: Simplify right side
    761,660.27x = 292,511,514,590.92
  5. Step 5: Solve for x
    x = 292,511,514,590.92/761,660.27
  6. Step 6: Final answer
    x = 384,044.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.