Home / 728,077.40-1,092,116.10-651,969.80

Finding the Fourth Proportional to 728,077.40, 1,092,116.10 and 651,969.80

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Solution

The fourth proportional to 728,077.40, 1,092,116.10 and 651,969.80 is: 977,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,077.40 : 1,092,116.10 = 651,969.80 : x
  2. Step 2: Convert to fraction form
    728,077.40/1,092,116.10 = 651,969.80/x
  3. Step 3: Cross multiply
    728,077.40x = 1,092,116.10 × 651,969.80
  4. Step 4: Simplify right side
    728,077.40x = 712,026,715,293.78
  5. Step 5: Solve for x
    x = 712,026,715,293.78/728,077.40
  6. Step 6: Final answer
    x = 977,954.70

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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.