Home / 728,725.60-1,093,088.40-651,961.90

Finding the Fourth Proportional to 728,725.60, 1,093,088.40 and 651,961.90

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Solution

The fourth proportional to 728,725.60, 1,093,088.40 and 651,961.90 is: 977,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,725.60 : 1,093,088.40 = 651,961.90 : x
  2. Step 2: Convert to fraction form
    728,725.60/1,093,088.40 = 651,961.90/x
  3. Step 3: Cross multiply
    728,725.60x = 1,093,088.40 × 651,961.90
  4. Step 4: Simplify right side
    728,725.60x = 712,651,990,131.96
  5. Step 5: Solve for x
    x = 712,651,990,131.96/728,725.60
  6. Step 6: Final answer
    x = 977,942.85

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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.