Home / 788,660.20-1,182,990.30-727,834.60

Finding the Fourth Proportional to 788,660.20, 1,182,990.30 and 727,834.60

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Solution

The fourth proportional to 788,660.20, 1,182,990.30 and 727,834.60 is: 1,091,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,660.20 : 1,182,990.30 = 727,834.60 : x
  2. Step 2: Convert to fraction form
    788,660.20/1,182,990.30 = 727,834.60/x
  3. Step 3: Cross multiply
    788,660.20x = 1,182,990.30 × 727,834.60
  4. Step 4: Simplify right side
    788,660.20x = 861,021,271,804.38
  5. Step 5: Solve for x
    x = 861,021,271,804.38/788,660.20
  6. Step 6: Final answer
    x = 1,091,751.90

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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.