Home / 1,319,251.60-1,978,877.40-1,245,768.40

Finding the Fourth Proportional to 1,319,251.60, 1,978,877.40 and 1,245,768.40

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Solution

The fourth proportional to 1,319,251.60, 1,978,877.40 and 1,245,768.40 is: 1,868,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,251.60 : 1,978,877.40 = 1,245,768.40 : x
  2. Step 2: Convert to fraction form
    1,319,251.60/1,978,877.40 = 1,245,768.40/x
  3. Step 3: Cross multiply
    1,319,251.60x = 1,978,877.40 × 1,245,768.40
  4. Step 4: Simplify right side
    1,319,251.60x = 2,465,222,932,394.16
  5. Step 5: Solve for x
    x = 2,465,222,932,394.16/1,319,251.60
  6. Step 6: Final answer
    x = 1,868,652.60

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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.