Home / 891,557.70-1,337,331.90-217,642.56

Finding the Fourth Proportional to 891,557.70, 1,337,331.90 and 217,642.56

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Solution

The fourth proportional to 891,557.70, 1,337,331.90 and 217,642.56 is: 326,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,557.70 : 1,337,331.90 = 217,642.56 : x
  2. Step 2: Convert to fraction form
    891,557.70/1,337,331.90 = 217,642.56/x
  3. Step 3: Cross multiply
    891,557.70x = 1,337,331.90 × 217,642.56
  4. Step 4: Simplify right side
    891,557.70x = 291,060,338,285.66
  5. Step 5: Solve for x
    x = 291,060,338,285.66/891,557.70
  6. Step 6: Final answer
    x = 326,462.70

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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.