Home / 870,702.75-1,304,507.25-743,047.56

Finding the Fourth Proportional to 870,702.75, 1,304,507.25 and 743,047.56

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Solution

The fourth proportional to 870,702.75, 1,304,507.25 and 743,047.56 is: 1,113,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,702.75 : 1,304,507.25 = 743,047.56 : x
  2. Step 2: Convert to fraction form
    870,702.75/1,304,507.25 = 743,047.56/x
  3. Step 3: Cross multiply
    870,702.75x = 1,304,507.25 × 743,047.56
  4. Step 4: Simplify right side
    870,702.75x = 969,310,929,114.81
  5. Step 5: Solve for x
    x = 969,310,929,114.81/870,702.75
  6. Step 6: Final answer
    x = 1,113,251.25

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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.