Home / 1,310,517.76-1,965,775.20-412,038.04

Finding the Fourth Proportional to 1,310,517.76, 1,965,775.20 and 412,038.04

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Solution

The fourth proportional to 1,310,517.76, 1,965,775.20 and 412,038.04 is: 618,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,517.76 : 1,965,775.20 = 412,038.04 : x
  2. Step 2: Convert to fraction form
    1,310,517.76/1,965,775.20 = 412,038.04/x
  3. Step 3: Cross multiply
    1,310,517.76x = 1,965,775.20 × 412,038.04
  4. Step 4: Simplify right side
    1,310,517.76x = 809,974,160,488.61
  5. Step 5: Solve for x
    x = 809,974,160,488.61/1,310,517.76
  6. Step 6: Final answer
    x = 618,056.61

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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.