Home / 1,340,311.60-2,010,078.60-487,284.40

Finding the Fourth Proportional to 1,340,311.60, 2,010,078.60 and 487,284.40

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Solution

The fourth proportional to 1,340,311.60, 2,010,078.60 and 487,284.40 is: 730,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,311.60 : 2,010,078.60 = 487,284.40 : x
  2. Step 2: Convert to fraction form
    1,340,311.60/2,010,078.60 = 487,284.40/x
  3. Step 3: Cross multiply
    1,340,311.60x = 2,010,078.60 × 487,284.40
  4. Step 4: Simplify right side
    1,340,311.60x = 979,479,944,553.84
  5. Step 5: Solve for x
    x = 979,479,944,553.84/1,340,311.60
  6. Step 6: Final answer
    x = 730,785.25

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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.