Home / 1,310,414.10-1,965,621.15-777,660.90

Finding the Fourth Proportional to 1,310,414.10, 1,965,621.15 and 777,660.90

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Solution

The fourth proportional to 1,310,414.10, 1,965,621.15 and 777,660.90 is: 1,166,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,414.10 : 1,965,621.15 = 777,660.90 : x
  2. Step 2: Convert to fraction form
    1,310,414.10/1,965,621.15 = 777,660.90/x
  3. Step 3: Cross multiply
    1,310,414.10x = 1,965,621.15 × 777,660.90
  4. Step 4: Simplify right side
    1,310,414.10x = 1,528,586,712,568.04
  5. Step 5: Solve for x
    x = 1,528,586,712,568.04/1,310,414.10
  6. Step 6: Final answer
    x = 1,166,491.35

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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.