Home / 1,987,000.80-2,980,501.20-1,027,454.55

Finding the Fourth Proportional to 1,987,000.80, 2,980,501.20 and 1,027,454.55

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Solution

The fourth proportional to 1,987,000.80, 2,980,501.20 and 1,027,454.55 is: 1,541,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,000.80 : 2,980,501.20 = 1,027,454.55 : x
  2. Step 2: Convert to fraction form
    1,987,000.80/2,980,501.20 = 1,027,454.55/x
  3. Step 3: Cross multiply
    1,987,000.80x = 2,980,501.20 × 1,027,454.55
  4. Step 4: Simplify right side
    1,987,000.80x = 3,062,329,519,220.46
  5. Step 5: Solve for x
    x = 3,062,329,519,220.46/1,987,000.80
  6. Step 6: Final answer
    x = 1,541,181.83

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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.