Home / 862,125.32-1,189,769.92-480,152.21

Finding the Fourth Proportional to 862,125.32, 1,189,769.92 and 480,152.21

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Solution

The fourth proportional to 862,125.32, 1,189,769.92 and 480,152.21 is: 662,630.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,125.32 : 1,189,769.92 = 480,152.21 : x
  2. Step 2: Convert to fraction form
    862,125.32/1,189,769.92 = 480,152.21/x
  3. Step 3: Cross multiply
    862,125.32x = 1,189,769.92 × 480,152.21
  4. Step 4: Simplify right side
    862,125.32x = 571,270,649,330.29
  5. Step 5: Solve for x
    x = 571,270,649,330.29/862,125.32
  6. Step 6: Final answer
    x = 662,630.63

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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.