Home / 1,275,990.81-1,914,248.67-876,819.57

Finding the Fourth Proportional to 1,275,990.81, 1,914,248.67 and 876,819.57

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Solution

The fourth proportional to 1,275,990.81, 1,914,248.67 and 876,819.57 is: 1,315,409.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,990.81 : 1,914,248.67 = 876,819.57 : x
  2. Step 2: Convert to fraction form
    1,275,990.81/1,914,248.67 = 876,819.57/x
  3. Step 3: Cross multiply
    1,275,990.81x = 1,914,248.67 × 876,819.57
  4. Step 4: Simplify right side
    1,275,990.81x = 1,678,450,695,702.47
  5. Step 5: Solve for x
    x = 1,678,450,695,702.47/1,275,990.81
  6. Step 6: Final answer
    x = 1,315,409.71

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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.