Home / 822,865.89-1,135,058.39-543,464.79

Finding the Fourth Proportional to 822,865.89, 1,135,058.39 and 543,464.79

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Solution

The fourth proportional to 822,865.89, 1,135,058.39 and 543,464.79 is: 749,653.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,865.89 : 1,135,058.39 = 543,464.79 : x
  2. Step 2: Convert to fraction form
    822,865.89/1,135,058.39 = 543,464.79/x
  3. Step 3: Cross multiply
    822,865.89x = 1,135,058.39 × 543,464.79
  4. Step 4: Simplify right side
    822,865.89x = 616,864,266,841.76
  5. Step 5: Solve for x
    x = 616,864,266,841.76/822,865.89
  6. Step 6: Final answer
    x = 749,653.47

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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.