Home / 815,254.86-1,221,635.28-341,681.88

Finding the Fourth Proportional to 815,254.86, 1,221,635.28 and 341,681.88

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Solution

The fourth proportional to 815,254.86, 1,221,635.28 and 341,681.88 is: 512,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,254.86 : 1,221,635.28 = 341,681.88 : x
  2. Step 2: Convert to fraction form
    815,254.86/1,221,635.28 = 341,681.88/x
  3. Step 3: Cross multiply
    815,254.86x = 1,221,635.28 × 341,681.88
  4. Step 4: Simplify right side
    815,254.86x = 417,410,639,144.73
  5. Step 5: Solve for x
    x = 417,410,639,144.73/815,254.86
  6. Step 6: Final answer
    x = 512,000.19

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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.