Home / 579,428.20-869,142.30-366,851.80

Finding the Fourth Proportional to 579,428.20, 869,142.30 and 366,851.80

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Solution

The fourth proportional to 579,428.20, 869,142.30 and 366,851.80 is: 550,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,428.20 : 869,142.30 = 366,851.80 : x
  2. Step 2: Convert to fraction form
    579,428.20/869,142.30 = 366,851.80/x
  3. Step 3: Cross multiply
    579,428.20x = 869,142.30 × 366,851.80
  4. Step 4: Simplify right side
    579,428.20x = 318,846,417,211.14
  5. Step 5: Solve for x
    x = 318,846,417,211.14/579,428.20
  6. Step 6: Final answer
    x = 550,277.70

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Similar ratio
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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.