Home / 1,319,884.38-1,979,760.92-722,013.30

Finding the Fourth Proportional to 1,319,884.38, 1,979,760.92 and 722,013.30

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Solution

The fourth proportional to 1,319,884.38, 1,979,760.92 and 722,013.30 is: 1,082,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,884.38 : 1,979,760.92 = 722,013.30 : x
  2. Step 2: Convert to fraction form
    1,319,884.38/1,979,760.92 = 722,013.30/x
  3. Step 3: Cross multiply
    1,319,884.38x = 1,979,760.92 × 722,013.30
  4. Step 4: Simplify right side
    1,319,884.38x = 1,429,413,711,450.17
  5. Step 5: Solve for x
    x = 1,429,413,711,450.17/1,319,884.38
  6. Step 6: Final answer
    x = 1,082,984.03

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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.