Home / 862,120.38-1,189,726.04-480,147.06

Finding the Fourth Proportional to 862,120.38, 1,189,726.04 and 480,147.06

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Solution

The fourth proportional to 862,120.38, 1,189,726.04 and 480,147.06 is: 662,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,120.38 : 1,189,726.04 = 480,147.06 : x
  2. Step 2: Convert to fraction form
    862,120.38/1,189,726.04 = 480,147.06/x
  3. Step 3: Cross multiply
    862,120.38x = 1,189,726.04 × 480,147.06
  4. Step 4: Simplify right side
    862,120.38x = 571,243,460,311.44
  5. Step 5: Solve for x
    x = 571,243,460,311.44/862,120.38
  6. Step 6: Final answer
    x = 662,602.90

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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.