Home / 851,422.68-1,175,016.24-469,448.88

Finding the Fourth Proportional to 851,422.68, 1,175,016.24 and 469,448.88

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Solution

The fourth proportional to 851,422.68, 1,175,016.24 and 469,448.88 is: 647,868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,422.68 : 1,175,016.24 = 469,448.88 : x
  2. Step 2: Convert to fraction form
    851,422.68/1,175,016.24 = 469,448.88/x
  3. Step 3: Cross multiply
    851,422.68x = 1,175,016.24 × 469,448.88
  4. Step 4: Simplify right side
    851,422.68x = 551,610,057,849.81
  5. Step 5: Solve for x
    x = 551,610,057,849.81/851,422.68
  6. Step 6: Final answer
    x = 647,868.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.