Home / 545,114.20-816,504.90-486,016.60

Finding the Fourth Proportional to 545,114.20, 816,504.90 and 486,016.60

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Solution

The fourth proportional to 545,114.20, 816,504.90 and 486,016.60 is: 727,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,114.20 : 816,504.90 = 486,016.60 : x
  2. Step 2: Convert to fraction form
    545,114.20/816,504.90 = 486,016.60/x
  3. Step 3: Cross multiply
    545,114.20x = 816,504.90 × 486,016.60
  4. Step 4: Simplify right side
    545,114.20x = 396,834,935,381.34
  5. Step 5: Solve for x
    x = 396,834,935,381.34/545,114.20
  6. Step 6: Final answer
    x = 727,984.95

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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.