Home / 727,076.80-1,090,615.20-412,148.80

Finding the Fourth Proportional to 727,076.80, 1,090,615.20 and 412,148.80

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Solution

The fourth proportional to 727,076.80, 1,090,615.20 and 412,148.80 is: 618,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,076.80 : 1,090,615.20 = 412,148.80 : x
  2. Step 2: Convert to fraction form
    727,076.80/1,090,615.20 = 412,148.80/x
  3. Step 3: Cross multiply
    727,076.80x = 1,090,615.20 × 412,148.80
  4. Step 4: Simplify right side
    727,076.80x = 449,495,745,941.76
  5. Step 5: Solve for x
    x = 449,495,745,941.76/727,076.80
  6. Step 6: Final answer
    x = 618,223.20

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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.