Home / 925,084.80-1,387,756.80-392,601.60

Finding the Fourth Proportional to 925,084.80, 1,387,756.80 and 392,601.60

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Solution

The fourth proportional to 925,084.80, 1,387,756.80 and 392,601.60 is: 588,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,084.80 : 1,387,756.80 = 392,601.60 : x
  2. Step 2: Convert to fraction form
    925,084.80/1,387,756.80 = 392,601.60/x
  3. Step 3: Cross multiply
    925,084.80x = 1,387,756.80 × 392,601.60
  4. Step 4: Simplify right side
    925,084.80x = 544,835,540,090.88
  5. Step 5: Solve for x
    x = 544,835,540,090.88/925,084.80
  6. Step 6: Final answer
    x = 588,957.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.