Home / 838,121.36-1,257,223.55-239,170.77

Finding the Fourth Proportional to 838,121.36, 1,257,223.55 and 239,170.77

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Solution

The fourth proportional to 838,121.36, 1,257,223.55 and 239,170.77 is: 358,768.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,121.36 : 1,257,223.55 = 239,170.77 : x
  2. Step 2: Convert to fraction form
    838,121.36/1,257,223.55 = 239,170.77/x
  3. Step 3: Cross multiply
    838,121.36x = 1,257,223.55 × 239,170.77
  4. Step 4: Simplify right side
    838,121.36x = 300,691,123,319.78
  5. Step 5: Solve for x
    x = 300,691,123,319.78/838,121.36
  6. Step 6: Final answer
    x = 358,768.00

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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.