Home / 766,271.52-1,149,407.58-316,498.10

Finding the Fourth Proportional to 766,271.52, 1,149,407.58 and 316,498.10

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Solution

The fourth proportional to 766,271.52, 1,149,407.58 and 316,498.10 is: 474,747.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,271.52 : 1,149,407.58 = 316,498.10 : x
  2. Step 2: Convert to fraction form
    766,271.52/1,149,407.58 = 316,498.10/x
  3. Step 3: Cross multiply
    766,271.52x = 1,149,407.58 × 316,498.10
  4. Step 4: Simplify right side
    766,271.52x = 363,785,315,195.60
  5. Step 5: Solve for x
    x = 363,785,315,195.60/766,271.52
  6. Step 6: Final answer
    x = 474,747.27

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Double scale
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Similar ratio
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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.