Home / 862,095.18-1,189,728.25-480,121.96

Finding the Fourth Proportional to 862,095.18, 1,189,728.25 and 480,121.96

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Solution

The fourth proportional to 862,095.18, 1,189,728.25 and 480,121.96 is: 662,588.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,095.18 : 1,189,728.25 = 480,121.96 : x
  2. Step 2: Convert to fraction form
    862,095.18/1,189,728.25 = 480,121.96/x
  3. Step 3: Cross multiply
    862,095.18x = 1,189,728.25 × 480,121.96
  4. Step 4: Simplify right side
    862,095.18x = 571,214,659,257.37
  5. Step 5: Solve for x
    x = 571,214,659,257.37/862,095.18
  6. Step 6: Final answer
    x = 662,588.86

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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.