Home / 853,756.60-1,279,760.10-498,587.80

Finding the Fourth Proportional to 853,756.60, 1,279,760.10 and 498,587.80

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Solution

The fourth proportional to 853,756.60, 1,279,760.10 and 498,587.80 is: 747,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,756.60 : 1,279,760.10 = 498,587.80 : x
  2. Step 2: Convert to fraction form
    853,756.60/1,279,760.10 = 498,587.80/x
  3. Step 3: Cross multiply
    853,756.60x = 1,279,760.10 × 498,587.80
  4. Step 4: Simplify right side
    853,756.60x = 638,072,772,786.78
  5. Step 5: Solve for x
    x = 638,072,772,786.78/853,756.60
  6. Step 6: Final answer
    x = 747,370.82

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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.