Home / 807,145.20-1,213,342.20-572,115.60

Finding the Fourth Proportional to 807,145.20, 1,213,342.20 and 572,115.60

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Solution

The fourth proportional to 807,145.20, 1,213,342.20 and 572,115.60 is: 860,033.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,145.20 : 1,213,342.20 = 572,115.60 : x
  2. Step 2: Convert to fraction form
    807,145.20/1,213,342.20 = 572,115.60/x
  3. Step 3: Cross multiply
    807,145.20x = 1,213,342.20 × 572,115.60
  4. Step 4: Simplify right side
    807,145.20x = 694,172,000,758.32
  5. Step 5: Solve for x
    x = 694,172,000,758.32/807,145.20
  6. Step 6: Final answer
    x = 860,033.61

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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.