Home / 862,105.28-1,189,742.16-480,132

Finding the Fourth Proportional to 862,105.28, 1,189,742.16 and 480,132

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Solution

The fourth proportional to 862,105.28, 1,189,742.16 and 480,132 is: 662,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,105.28 : 1,189,742.16 = 480,132 : x
  2. Step 2: Convert to fraction form
    862,105.28/1,189,742.16 = 480,132/x
  3. Step 3: Cross multiply
    862,105.28x = 1,189,742.16 × 480,132
  4. Step 4: Simplify right side
    862,105.28x = 571,233,282,765.12
  5. Step 5: Solve for x
    x = 571,233,282,765.12/862,105.28
  6. Step 6: Final answer
    x = 662,602.70

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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.