Home / 815,760.30-1,222,382.90-436,731.32

Finding the Fourth Proportional to 815,760.30, 1,222,382.90 and 436,731.32

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Solution

The fourth proportional to 815,760.30, 1,222,382.90 and 436,731.32 is: 654,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,760.30 : 1,222,382.90 = 436,731.32 : x
  2. Step 2: Convert to fraction form
    815,760.30/1,222,382.90 = 436,731.32/x
  3. Step 3: Cross multiply
    815,760.30x = 1,222,382.90 × 436,731.32
  4. Step 4: Simplify right side
    815,760.30x = 533,852,897,462.43
  5. Step 5: Solve for x
    x = 533,852,897,462.43/815,760.30
  6. Step 6: Final answer
    x = 654,423.73

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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.