Home / 591,995.19-887,990.85-212,915.31

Finding the Fourth Proportional to 591,995.19, 887,990.85 and 212,915.31

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Solution

The fourth proportional to 591,995.19, 887,990.85 and 212,915.31 is: 319,372.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,995.19 : 887,990.85 = 212,915.31 : x
  2. Step 2: Convert to fraction form
    591,995.19/887,990.85 = 212,915.31/x
  3. Step 3: Cross multiply
    591,995.19x = 887,990.85 × 212,915.31
  4. Step 4: Simplify right side
    591,995.19x = 189,066,847,104.91
  5. Step 5: Solve for x
    x = 189,066,847,104.91/591,995.19
  6. Step 6: Final answer
    x = 319,372.27

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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.