Home / 838,211.54-1,257,363.78-239,126.64

Finding the Fourth Proportional to 838,211.54, 1,257,363.78 and 239,126.64

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Solution

The fourth proportional to 838,211.54, 1,257,363.78 and 239,126.64 is: 358,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,211.54 : 1,257,363.78 = 239,126.64 : x
  2. Step 2: Convert to fraction form
    838,211.54/1,257,363.78 = 239,126.64/x
  3. Step 3: Cross multiply
    838,211.54x = 1,257,363.78 × 239,126.64
  4. Step 4: Simplify right side
    838,211.54x = 300,669,175,969.10
  5. Step 5: Solve for x
    x = 300,669,175,969.10/838,211.54
  6. Step 6: Final answer
    x = 358,703.22

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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.