Home / 820,578.35-1,132,455.18-458,072.97

Finding the Fourth Proportional to 820,578.35, 1,132,455.18 and 458,072.97

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Solution

The fourth proportional to 820,578.35, 1,132,455.18 and 458,072.97 is: 632,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,578.35 : 1,132,455.18 = 458,072.97 : x
  2. Step 2: Convert to fraction form
    820,578.35/1,132,455.18 = 458,072.97/x
  3. Step 3: Cross multiply
    820,578.35x = 1,132,455.18 × 458,072.97
  4. Step 4: Simplify right side
    820,578.35x = 518,747,107,694.49
  5. Step 5: Solve for x
    x = 518,747,107,694.49/820,578.35
  6. Step 6: Final answer
    x = 632,172.55

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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.