Home / 862,121.66-1,189,764.66-480,148.45

Finding the Fourth Proportional to 862,121.66, 1,189,764.66 and 480,148.45

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Solution

The fourth proportional to 862,121.66, 1,189,764.66 and 480,148.45 is: 662,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,121.66 : 1,189,764.66 = 480,148.45 : x
  2. Step 2: Convert to fraction form
    862,121.66/1,189,764.66 = 480,148.45/x
  3. Step 3: Cross multiply
    862,121.66x = 1,189,764.66 × 480,148.45
  4. Step 4: Simplify right side
    862,121.66x = 571,263,651,414.95
  5. Step 5: Solve for x
    x = 571,263,651,414.95/862,121.66
  6. Step 6: Final answer
    x = 662,625.33

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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.