Home / 1,340,455.20-2,012,115.24-542,258.52

Finding the Fourth Proportional to 1,340,455.20, 2,012,115.24 and 542,258.52

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Solution

The fourth proportional to 1,340,455.20, 2,012,115.24 and 542,258.52 is: 813,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,455.20 : 2,012,115.24 = 542,258.52 : x
  2. Step 2: Convert to fraction form
    1,340,455.20/2,012,115.24 = 542,258.52/x
  3. Step 3: Cross multiply
    1,340,455.20x = 2,012,115.24 × 542,258.52
  4. Step 4: Simplify right side
    1,340,455.20x = 1,091,086,632,111.84
  5. Step 5: Solve for x
    x = 1,091,086,632,111.84/1,340,455.20
  6. Step 6: Final answer
    x = 813,967.25

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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.