Home / 767,009.60-1,150,514.40-431,086.40

Finding the Fourth Proportional to 767,009.60, 1,150,514.40 and 431,086.40

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Solution

The fourth proportional to 767,009.60, 1,150,514.40 and 431,086.40 is: 646,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,009.60 : 1,150,514.40 = 431,086.40 : x
  2. Step 2: Convert to fraction form
    767,009.60/1,150,514.40 = 431,086.40/x
  3. Step 3: Cross multiply
    767,009.60x = 1,150,514.40 × 431,086.40
  4. Step 4: Simplify right side
    767,009.60x = 495,971,110,844.16
  5. Step 5: Solve for x
    x = 495,971,110,844.16/767,009.60
  6. Step 6: Final answer
    x = 646,629.60

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Similar ratio
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1.5x scale

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.