Home / 412,206.10-618,309.67-112,689.28

Finding the Fourth Proportional to 412,206.10, 618,309.67 and 112,689.28

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Solution

The fourth proportional to 412,206.10, 618,309.67 and 112,689.28 is: 169,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,206.10 : 618,309.67 = 112,689.28 : x
  2. Step 2: Convert to fraction form
    412,206.10/618,309.67 = 112,689.28/x
  3. Step 3: Cross multiply
    412,206.10x = 618,309.67 × 112,689.28
  4. Step 4: Simplify right side
    412,206.10x = 69,676,868,278.40
  5. Step 5: Solve for x
    x = 69,676,868,278.40/412,206.10
  6. Step 6: Final answer
    x = 169,034.05

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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.