Home / 815,133.84-1,221,372.60-498,927.12

Finding the Fourth Proportional to 815,133.84, 1,221,372.60 and 498,927.12

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Solution

The fourth proportional to 815,133.84, 1,221,372.60 and 498,927.12 is: 747,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,133.84 : 1,221,372.60 = 498,927.12 : x
  2. Step 2: Convert to fraction form
    815,133.84/1,221,372.60 = 498,927.12/x
  3. Step 3: Cross multiply
    815,133.84x = 1,221,372.60 × 498,927.12
  4. Step 4: Simplify right side
    815,133.84x = 609,375,913,764.91
  5. Step 5: Solve for x
    x = 609,375,913,764.91/815,133.84
  6. Step 6: Final answer
    x = 747,577.74

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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.