Home / 434,067.20-651,100.80-426,291.20

Finding the Fourth Proportional to 434,067.20, 651,100.80 and 426,291.20

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Solution

The fourth proportional to 434,067.20, 651,100.80 and 426,291.20 is: 639,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,067.20 : 651,100.80 = 426,291.20 : x
  2. Step 2: Convert to fraction form
    434,067.20/651,100.80 = 426,291.20/x
  3. Step 3: Cross multiply
    434,067.20x = 651,100.80 × 426,291.20
  4. Step 4: Simplify right side
    434,067.20x = 277,558,541,352.96
  5. Step 5: Solve for x
    x = 277,558,541,352.96/434,067.20
  6. Step 6: Final answer
    x = 639,436.80

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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.