Home / 979,930.51-1,352,178.69-571,938.79

Finding the Fourth Proportional to 979,930.51, 1,352,178.69 and 571,938.79

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Solution

The fourth proportional to 979,930.51, 1,352,178.69 and 571,938.79 is: 789,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,930.51 : 1,352,178.69 = 571,938.79 : x
  2. Step 2: Convert to fraction form
    979,930.51/1,352,178.69 = 571,938.79/x
  3. Step 3: Cross multiply
    979,930.51x = 1,352,178.69 × 571,938.79
  4. Step 4: Simplify right side
    979,930.51x = 773,363,443,822.39
  5. Step 5: Solve for x
    x = 773,363,443,822.39/979,930.51
  6. Step 6: Final answer
    x = 789,202.33

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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.