Home / 1,520,149.20-2,280,223.80-621,000.60

Finding the Fourth Proportional to 1,520,149.20, 2,280,223.80 and 621,000.60

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Solution

The fourth proportional to 1,520,149.20, 2,280,223.80 and 621,000.60 is: 931,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,149.20 : 2,280,223.80 = 621,000.60 : x
  2. Step 2: Convert to fraction form
    1,520,149.20/2,280,223.80 = 621,000.60/x
  3. Step 3: Cross multiply
    1,520,149.20x = 2,280,223.80 × 621,000.60
  4. Step 4: Simplify right side
    1,520,149.20x = 1,416,020,347,934.28
  5. Step 5: Solve for x
    x = 1,416,020,347,934.28/1,520,149.20
  6. Step 6: Final answer
    x = 931,500.90

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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.