Home / 820,331.42-1,131,758.33-510,213.60

Finding the Fourth Proportional to 820,331.42, 1,131,758.33 and 510,213.60

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Solution

The fourth proportional to 820,331.42, 1,131,758.33 and 510,213.60 is: 703,908.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,331.42 : 1,131,758.33 = 510,213.60 : x
  2. Step 2: Convert to fraction form
    820,331.42/1,131,758.33 = 510,213.60/x
  3. Step 3: Cross multiply
    820,331.42x = 1,131,758.33 × 510,213.60
  4. Step 4: Simplify right side
    820,331.42x = 577,438,489,328.22
  5. Step 5: Solve for x
    x = 577,438,489,328.22/820,331.42
  6. Step 6: Final answer
    x = 703,908.78

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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.