Home / 827,423.60-1,241,749.80-329,145.20

Finding the Fourth Proportional to 827,423.60, 1,241,749.80 and 329,145.20

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Solution

The fourth proportional to 827,423.60, 1,241,749.80 and 329,145.20 is: 493,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,423.60 : 1,241,749.80 = 329,145.20 : x
  2. Step 2: Convert to fraction form
    827,423.60/1,241,749.80 = 329,145.20/x
  3. Step 3: Cross multiply
    827,423.60x = 1,241,749.80 × 329,145.20
  4. Step 4: Simplify right side
    827,423.60x = 408,715,986,270.96
  5. Step 5: Solve for x
    x = 408,715,986,270.96/827,423.60
  6. Step 6: Final answer
    x = 493,962.21

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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.