Home / 862,348.80-1,190,077.20-480,375.48

Finding the Fourth Proportional to 862,348.80, 1,190,077.20 and 480,375.48

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Solution

The fourth proportional to 862,348.80, 1,190,077.20 and 480,375.48 is: 662,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,348.80 : 1,190,077.20 = 480,375.48 : x
  2. Step 2: Convert to fraction form
    862,348.80/1,190,077.20 = 480,375.48/x
  3. Step 3: Cross multiply
    862,348.80x = 1,190,077.20 × 480,375.48
  4. Step 4: Simplify right side
    862,348.80x = 571,683,906,187.06
  5. Step 5: Solve for x
    x = 571,683,906,187.06/862,348.80
  6. Step 6: Final answer
    x = 662,938.14

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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.