Home / 672,780.74-1,009,171.07-461,778.98

Finding the Fourth Proportional to 672,780.74, 1,009,171.07 and 461,778.98

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Solution

The fourth proportional to 672,780.74, 1,009,171.07 and 461,778.98 is: 692,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,780.74 : 1,009,171.07 = 461,778.98 : x
  2. Step 2: Convert to fraction form
    672,780.74/1,009,171.07 = 461,778.98/x
  3. Step 3: Cross multiply
    672,780.74x = 1,009,171.07 × 461,778.98
  4. Step 4: Simplify right side
    672,780.74x = 466,013,981,727.03
  5. Step 5: Solve for x
    x = 466,013,981,727.03/672,780.74
  6. Step 6: Final answer
    x = 692,668.44

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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.