Home / 820,034.82-1,131,644.91-457,458.39

Finding the Fourth Proportional to 820,034.82, 1,131,644.91 and 457,458.39

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Solution

The fourth proportional to 820,034.82, 1,131,644.91 and 457,458.39 is: 631,290.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,034.82 : 1,131,644.91 = 457,458.39 : x
  2. Step 2: Convert to fraction form
    820,034.82/1,131,644.91 = 457,458.39/x
  3. Step 3: Cross multiply
    820,034.82x = 1,131,644.91 × 457,458.39
  4. Step 4: Simplify right side
    820,034.82x = 517,680,460,295.76
  5. Step 5: Solve for x
    x = 517,680,460,295.76/820,034.82
  6. Step 6: Final answer
    x = 631,290.83

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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.