Home / 847,727.76-1,271,338.01-279,003.88

Finding the Fourth Proportional to 847,727.76, 1,271,338.01 and 279,003.88

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Solution

The fourth proportional to 847,727.76, 1,271,338.01 and 279,003.88 is: 418,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,727.76 : 1,271,338.01 = 279,003.88 : x
  2. Step 2: Convert to fraction form
    847,727.76/1,271,338.01 = 279,003.88/x
  3. Step 3: Cross multiply
    847,727.76x = 1,271,338.01 × 279,003.88
  4. Step 4: Simplify right side
    847,727.76x = 354,708,237,581.48
  5. Step 5: Solve for x
    x = 354,708,237,581.48/847,727.76
  6. Step 6: Final answer
    x = 418,422.35

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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.