Home / 1,319,234.40-1,979,629.20-871,250.40

Finding the Fourth Proportional to 1,319,234.40, 1,979,629.20 and 871,250.40

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Solution

The fourth proportional to 1,319,234.40, 1,979,629.20 and 871,250.40 is: 1,307,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,234.40 : 1,979,629.20 = 871,250.40 : x
  2. Step 2: Convert to fraction form
    1,319,234.40/1,979,629.20 = 871,250.40/x
  3. Step 3: Cross multiply
    1,319,234.40x = 1,979,629.20 × 871,250.40
  4. Step 4: Simplify right side
    1,319,234.40x = 1,724,752,732,351.68
  5. Step 5: Solve for x
    x = 1,724,752,732,351.68/1,319,234.40
  6. Step 6: Final answer
    x = 1,307,389.14

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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.