Home / 651,100.20-976,067.10-426,568.20

Finding the Fourth Proportional to 651,100.20, 976,067.10 and 426,568.20

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Solution

The fourth proportional to 651,100.20, 976,067.10 and 426,568.20 is: 639,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,100.20 : 976,067.10 = 426,568.20 : x
  2. Step 2: Convert to fraction form
    651,100.20/976,067.10 = 426,568.20/x
  3. Step 3: Cross multiply
    651,100.20x = 976,067.10 × 426,568.20
  4. Step 4: Simplify right side
    651,100.20x = 416,359,185,926.22
  5. Step 5: Solve for x
    x = 416,359,185,926.22/651,100.20
  6. Step 6: Final answer
    x = 639,470.22

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Double scale
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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.