Home / 869,675.20-1,304,512.80-806,689.60

Finding the Fourth Proportional to 869,675.20, 1,304,512.80 and 806,689.60

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Solution

The fourth proportional to 869,675.20, 1,304,512.80 and 806,689.60 is: 1,210,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,675.20 : 1,304,512.80 = 806,689.60 : x
  2. Step 2: Convert to fraction form
    869,675.20/1,304,512.80 = 806,689.60/x
  3. Step 3: Cross multiply
    869,675.20x = 1,304,512.80 × 806,689.60
  4. Step 4: Simplify right side
    869,675.20x = 1,052,336,908,826.88
  5. Step 5: Solve for x
    x = 1,052,336,908,826.88/869,675.20
  6. Step 6: Final answer
    x = 1,210,034.40

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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.