Home / 728,072.40-1,092,108.60-651,964.80

Finding the Fourth Proportional to 728,072.40, 1,092,108.60 and 651,964.80

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Solution

The fourth proportional to 728,072.40, 1,092,108.60 and 651,964.80 is: 977,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,072.40 : 1,092,108.60 = 651,964.80 : x
  2. Step 2: Convert to fraction form
    728,072.40/1,092,108.60 = 651,964.80/x
  3. Step 3: Cross multiply
    728,072.40x = 1,092,108.60 × 651,964.80
  4. Step 4: Simplify right side
    728,072.40x = 712,016,364,977.28
  5. Step 5: Solve for x
    x = 712,016,364,977.28/728,072.40
  6. Step 6: Final answer
    x = 977,947.20

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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.