Home / 672,143.70-1,008,215.55-580,905.30

Finding the Fourth Proportional to 672,143.70, 1,008,215.55 and 580,905.30

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Solution

The fourth proportional to 672,143.70, 1,008,215.55 and 580,905.30 is: 871,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,143.70 : 1,008,215.55 = 580,905.30 : x
  2. Step 2: Convert to fraction form
    672,143.70/1,008,215.55 = 580,905.30/x
  3. Step 3: Cross multiply
    672,143.70x = 1,008,215.55 × 580,905.30
  4. Step 4: Simplify right side
    672,143.70x = 585,677,756,537.42
  5. Step 5: Solve for x
    x = 585,677,756,537.42/672,143.70
  6. Step 6: Final answer
    x = 871,357.95

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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.