Home / 905,725.60-1,359,463.20-551,431.60

Finding the Fourth Proportional to 905,725.60, 1,359,463.20 and 551,431.60

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Solution

The fourth proportional to 905,725.60, 1,359,463.20 and 551,431.60 is: 827,680.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,725.60 : 1,359,463.20 = 551,431.60 : x
  2. Step 2: Convert to fraction form
    905,725.60/1,359,463.20 = 551,431.60/x
  3. Step 3: Cross multiply
    905,725.60x = 1,359,463.20 × 551,431.60
  4. Step 4: Simplify right side
    905,725.60x = 749,650,967,517.12
  5. Step 5: Solve for x
    x = 749,650,967,517.12/905,725.60
  6. Step 6: Final answer
    x = 827,680.00

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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.