Home / 766,118.72-1,149,005.28-292,635.20

Finding the Fourth Proportional to 766,118.72, 1,149,005.28 and 292,635.20

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Solution

The fourth proportional to 766,118.72, 1,149,005.28 and 292,635.20 is: 438,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,118.72 : 1,149,005.28 = 292,635.20 : x
  2. Step 2: Convert to fraction form
    766,118.72/1,149,005.28 = 292,635.20/x
  3. Step 3: Cross multiply
    766,118.72x = 1,149,005.28 × 292,635.20
  4. Step 4: Simplify right side
    766,118.72x = 336,239,389,913.86
  5. Step 5: Solve for x
    x = 336,239,389,913.86/766,118.72
  6. Step 6: Final answer
    x = 438,886.80

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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.