Home / 728,091.40-1,092,137.10-651,983.80

Finding the Fourth Proportional to 728,091.40, 1,092,137.10 and 651,983.80

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Solution

The fourth proportional to 728,091.40, 1,092,137.10 and 651,983.80 is: 977,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,091.40 : 1,092,137.10 = 651,983.80 : x
  2. Step 2: Convert to fraction form
    728,091.40/1,092,137.10 = 651,983.80/x
  3. Step 3: Cross multiply
    728,091.40x = 1,092,137.10 × 651,983.80
  4. Step 4: Simplify right side
    728,091.40x = 712,055,696,578.98
  5. Step 5: Solve for x
    x = 712,055,696,578.98/728,091.40
  6. Step 6: Final answer
    x = 977,975.70

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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.