Home / 869,947.20-1,304,920.80-834,955.20

Finding the Fourth Proportional to 869,947.20, 1,304,920.80 and 834,955.20

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Solution

The fourth proportional to 869,947.20, 1,304,920.80 and 834,955.20 is: 1,252,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,947.20 : 1,304,920.80 = 834,955.20 : x
  2. Step 2: Convert to fraction form
    869,947.20/1,304,920.80 = 834,955.20/x
  3. Step 3: Cross multiply
    869,947.20x = 1,304,920.80 × 834,955.20
  4. Step 4: Simplify right side
    869,947.20x = 1,089,550,407,548.16
  5. Step 5: Solve for x
    x = 1,089,550,407,548.16/869,947.20
  6. Step 6: Final answer
    x = 1,252,432.80

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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.