Home / 862,378.92-1,190,083.56-480,406.56

Finding the Fourth Proportional to 862,378.92, 1,190,083.56 and 480,406.56

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Solution

The fourth proportional to 862,378.92, 1,190,083.56 and 480,406.56 is: 662,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,378.92 : 1,190,083.56 = 480,406.56 : x
  2. Step 2: Convert to fraction form
    862,378.92/1,190,083.56 = 480,406.56/x
  3. Step 3: Cross multiply
    862,378.92x = 1,190,083.56 × 480,406.56
  4. Step 4: Simplify right side
    862,378.92x = 571,723,949,172.15
  5. Step 5: Solve for x
    x = 571,723,949,172.15/862,378.92
  6. Step 6: Final answer
    x = 662,961.42

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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.