Home / 827,404.60-1,241,721.30-329,126.20

Finding the Fourth Proportional to 827,404.60, 1,241,721.30 and 329,126.20

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Solution

The fourth proportional to 827,404.60, 1,241,721.30 and 329,126.20 is: 493,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,404.60 : 1,241,721.30 = 329,126.20 : x
  2. Step 2: Convert to fraction form
    827,404.60/1,241,721.30 = 329,126.20/x
  3. Step 3: Cross multiply
    827,404.60x = 1,241,721.30 × 329,126.20
  4. Step 4: Simplify right side
    827,404.60x = 408,683,012,928.06
  5. Step 5: Solve for x
    x = 408,683,012,928.06/827,404.60
  6. Step 6: Final answer
    x = 493,933.70

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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.