Home / 905,897.76-1,250,154.34-498,016.60

Finding the Fourth Proportional to 905,897.76, 1,250,154.34 and 498,016.60

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Solution

The fourth proportional to 905,897.76, 1,250,154.34 and 498,016.60 is: 687,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,897.76 : 1,250,154.34 = 498,016.60 : x
  2. Step 2: Convert to fraction form
    905,897.76/1,250,154.34 = 498,016.60/x
  3. Step 3: Cross multiply
    905,897.76x = 1,250,154.34 × 498,016.60
  4. Step 4: Simplify right side
    905,897.76x = 622,597,613,882.04
  5. Step 5: Solve for x
    x = 622,597,613,882.04/905,897.76
  6. Step 6: Final answer
    x = 687,271.39

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Double scale
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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.