Home / 520,131.43-717,578.62-326,426.10

Finding the Fourth Proportional to 520,131.43, 717,578.62 and 326,426.10

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Solution

The fourth proportional to 520,131.43, 717,578.62 and 326,426.10 is: 450,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,131.43 : 717,578.62 = 326,426.10 : x
  2. Step 2: Convert to fraction form
    520,131.43/717,578.62 = 326,426.10/x
  3. Step 3: Cross multiply
    520,131.43x = 717,578.62 × 326,426.10
  4. Step 4: Simplify right side
    520,131.43x = 234,236,391,817.45
  5. Step 5: Solve for x
    x = 234,236,391,817.45/520,131.43
  6. Step 6: Final answer
    x = 450,340.78

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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.