Home / 1,386,900.40-2,080,350.60-852,689.20

Finding the Fourth Proportional to 1,386,900.40, 2,080,350.60 and 852,689.20

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Solution

The fourth proportional to 1,386,900.40, 2,080,350.60 and 852,689.20 is: 1,279,033.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,900.40 : 2,080,350.60 = 852,689.20 : x
  2. Step 2: Convert to fraction form
    1,386,900.40/2,080,350.60 = 852,689.20/x
  3. Step 3: Cross multiply
    1,386,900.40x = 2,080,350.60 × 852,689.20
  4. Step 4: Simplify right side
    1,386,900.40x = 1,773,892,488,833.52
  5. Step 5: Solve for x
    x = 1,773,892,488,833.52/1,386,900.40
  6. Step 6: Final answer
    x = 1,279,033.80

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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.