Home / 1,986,670.80-2,980,006.20-1,027,124.55

Finding the Fourth Proportional to 1,986,670.80, 2,980,006.20 and 1,027,124.55

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Solution

The fourth proportional to 1,986,670.80, 2,980,006.20 and 1,027,124.55 is: 1,540,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,670.80 : 2,980,006.20 = 1,027,124.55 : x
  2. Step 2: Convert to fraction form
    1,986,670.80/2,980,006.20 = 1,027,124.55/x
  3. Step 3: Cross multiply
    1,986,670.80x = 2,980,006.20 × 1,027,124.55
  4. Step 4: Simplify right side
    1,986,670.80x = 3,060,837,527,172.21
  5. Step 5: Solve for x
    x = 3,060,837,527,172.21/1,986,670.80
  6. Step 6: Final answer
    x = 1,540,686.83

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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.