Home / 847,610.65-1,271,276.22-278,999.15

Finding the Fourth Proportional to 847,610.65, 1,271,276.22 and 278,999.15

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Solution

The fourth proportional to 847,610.65, 1,271,276.22 and 278,999.15 is: 418,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,610.65 : 1,271,276.22 = 278,999.15 : x
  2. Step 2: Convert to fraction form
    847,610.65/1,271,276.22 = 278,999.15/x
  3. Step 3: Cross multiply
    847,610.65x = 1,271,276.22 × 278,999.15
  4. Step 4: Simplify right side
    847,610.65x = 354,684,984,795.21
  5. Step 5: Solve for x
    x = 354,684,984,795.21/847,610.65
  6. Step 6: Final answer
    x = 418,452.73

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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.