Home / 853,325.55-1,279,979.55-493,267.30

Finding the Fourth Proportional to 853,325.55, 1,279,979.55 and 493,267.30

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Solution

The fourth proportional to 853,325.55, 1,279,979.55 and 493,267.30 is: 739,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,325.55 : 1,279,979.55 = 493,267.30 : x
  2. Step 2: Convert to fraction form
    853,325.55/1,279,979.55 = 493,267.30/x
  3. Step 3: Cross multiply
    853,325.55x = 1,279,979.55 × 493,267.30
  4. Step 4: Simplify right side
    853,325.55x = 631,372,053,747.69
  5. Step 5: Solve for x
    x = 631,372,053,747.69/853,325.55
  6. Step 6: Final answer
    x = 739,895.88

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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.