Home / 820,100.70-1,230,151.05-503,531.10

Finding the Fourth Proportional to 820,100.70, 1,230,151.05 and 503,531.10

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Solution

The fourth proportional to 820,100.70, 1,230,151.05 and 503,531.10 is: 755,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,100.70 : 1,230,151.05 = 503,531.10 : x
  2. Step 2: Convert to fraction form
    820,100.70/1,230,151.05 = 503,531.10/x
  3. Step 3: Cross multiply
    820,100.70x = 1,230,151.05 × 503,531.10
  4. Step 4: Simplify right side
    820,100.70x = 619,419,311,372.66
  5. Step 5: Solve for x
    x = 619,419,311,372.66/820,100.70
  6. Step 6: Final answer
    x = 755,296.65

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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.