Home / 785,116.85-1,177,675.28-727,380.05

Finding the Fourth Proportional to 785,116.85, 1,177,675.28 and 727,380.05

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Solution

The fourth proportional to 785,116.85, 1,177,675.28 and 727,380.05 is: 1,091,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,116.85 : 1,177,675.28 = 727,380.05 : x
  2. Step 2: Convert to fraction form
    785,116.85/1,177,675.28 = 727,380.05/x
  3. Step 3: Cross multiply
    785,116.85x = 1,177,675.28 × 727,380.05
  4. Step 4: Simplify right side
    785,116.85x = 856,617,500,413.26
  5. Step 5: Solve for x
    x = 856,617,500,413.26/785,116.85
  6. Step 6: Final answer
    x = 1,091,070.08

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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.