Home / 790,646.55-1,091,078.96-428,067.47

Finding the Fourth Proportional to 790,646.55, 1,091,078.96 and 428,067.47

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Solution

The fourth proportional to 790,646.55, 1,091,078.96 and 428,067.47 is: 590,725.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,646.55 : 1,091,078.96 = 428,067.47 : x
  2. Step 2: Convert to fraction form
    790,646.55/1,091,078.96 = 428,067.47/x
  3. Step 3: Cross multiply
    790,646.55x = 1,091,078.96 × 428,067.47
  4. Step 4: Simplify right side
    790,646.55x = 467,055,402,381.70
  5. Step 5: Solve for x
    x = 467,055,402,381.70/790,646.55
  6. Step 6: Final answer
    x = 590,725.91

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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.