Home / 912,121.92-1,259,083.44-816,463.20

Finding the Fourth Proportional to 912,121.92, 1,259,083.44 and 816,463.20

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Solution

The fourth proportional to 912,121.92, 1,259,083.44 and 816,463.20 is: 1,127,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,121.92 : 1,259,083.44 = 816,463.20 : x
  2. Step 2: Convert to fraction form
    912,121.92/1,259,083.44 = 816,463.20/x
  3. Step 3: Cross multiply
    912,121.92x = 1,259,083.44 × 816,463.20
  4. Step 4: Simplify right side
    912,121.92x = 1,027,995,294,489.41
  5. Step 5: Solve for x
    x = 1,027,995,294,489.41/912,121.92
  6. Step 6: Final answer
    x = 1,127,037.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.