Home / 811,472.95-1,217,320.19-338,047.59

Finding the Fourth Proportional to 811,472.95, 1,217,320.19 and 338,047.59

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Solution

The fourth proportional to 811,472.95, 1,217,320.19 and 338,047.59 is: 507,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,472.95 : 1,217,320.19 = 338,047.59 : x
  2. Step 2: Convert to fraction form
    811,472.95/1,217,320.19 = 338,047.59/x
  3. Step 3: Cross multiply
    811,472.95x = 1,217,320.19 × 338,047.59
  4. Step 4: Simplify right side
    811,472.95x = 411,512,162,531.75
  5. Step 5: Solve for x
    x = 411,512,162,531.75/811,472.95
  6. Step 6: Final answer
    x = 507,117.53

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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.