Home / 985,489.20-1,478,233.80-275,516.10

Finding the Fourth Proportional to 985,489.20, 1,478,233.80 and 275,516.10

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Solution

The fourth proportional to 985,489.20, 1,478,233.80 and 275,516.10 is: 413,274.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,489.20 : 1,478,233.80 = 275,516.10 : x
  2. Step 2: Convert to fraction form
    985,489.20/1,478,233.80 = 275,516.10/x
  3. Step 3: Cross multiply
    985,489.20x = 1,478,233.80 × 275,516.10
  4. Step 4: Simplify right side
    985,489.20x = 407,277,211,464.18
  5. Step 5: Solve for x
    x = 407,277,211,464.18/985,489.20
  6. Step 6: Final answer
    x = 413,274.15

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Similar ratio
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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.