Home / 838,115.10-1,257,367.86-239,084.46

Finding the Fourth Proportional to 838,115.10, 1,257,367.86 and 239,084.46

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Solution

The fourth proportional to 838,115.10, 1,257,367.86 and 239,084.46 is: 358,682.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,115.10 : 1,257,367.86 = 239,084.46 : x
  2. Step 2: Convert to fraction form
    838,115.10/1,257,367.86 = 239,084.46/x
  3. Step 3: Cross multiply
    838,115.10x = 1,257,367.86 × 239,084.46
  4. Step 4: Simplify right side
    838,115.10x = 300,617,115,829.46
  5. Step 5: Solve for x
    x = 300,617,115,829.46/838,115.10
  6. Step 6: Final answer
    x = 358,682.38

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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.