Home / 925,389.60-1,386,010.80-481,639.20

Finding the Fourth Proportional to 925,389.60, 1,386,010.80 and 481,639.20

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Solution

The fourth proportional to 925,389.60, 1,386,010.80 and 481,639.20 is: 721,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,389.60 : 1,386,010.80 = 481,639.20 : x
  2. Step 2: Convert to fraction form
    925,389.60/1,386,010.80 = 481,639.20/x
  3. Step 3: Cross multiply
    925,389.60x = 1,386,010.80 × 481,639.20
  4. Step 4: Simplify right side
    925,389.60x = 667,557,132,903.36
  5. Step 5: Solve for x
    x = 667,557,132,903.36/925,389.60
  6. Step 6: Final answer
    x = 721,379.55

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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.