Home / 847,610.15-1,271,275.47-278,998.65

Finding the Fourth Proportional to 847,610.15, 1,271,275.47 and 278,998.65

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Solution

The fourth proportional to 847,610.15, 1,271,275.47 and 278,998.65 is: 418,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,610.15 : 1,271,275.47 = 278,998.65 : x
  2. Step 2: Convert to fraction form
    847,610.15/1,271,275.47 = 278,998.65/x
  3. Step 3: Cross multiply
    847,610.15x = 1,271,275.47 × 278,998.65
  4. Step 4: Simplify right side
    847,610.15x = 354,684,139,908.12
  5. Step 5: Solve for x
    x = 354,684,139,908.12/847,610.15
  6. Step 6: Final answer
    x = 418,451.98

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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.