Home / 787,301.15-1,086,472.93-443,136.88

Finding the Fourth Proportional to 787,301.15, 1,086,472.93 and 443,136.88

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Solution

The fourth proportional to 787,301.15, 1,086,472.93 and 443,136.88 is: 611,527.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,301.15 : 1,086,472.93 = 443,136.88 : x
  2. Step 2: Convert to fraction form
    787,301.15/1,086,472.93 = 443,136.88/x
  3. Step 3: Cross multiply
    787,301.15x = 1,086,472.93 × 443,136.88
  4. Step 4: Simplify right side
    787,301.15x = 481,456,224,654.91
  5. Step 5: Solve for x
    x = 481,456,224,654.91/787,301.15
  6. Step 6: Final answer
    x = 611,527.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.