Home / 988,286.80-1,363,982.06-625,744.30

Finding the Fourth Proportional to 988,286.80, 1,363,982.06 and 625,744.30

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Solution

The fourth proportional to 988,286.80, 1,363,982.06 and 625,744.30 is: 863,619.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,286.80 : 1,363,982.06 = 625,744.30 : x
  2. Step 2: Convert to fraction form
    988,286.80/1,363,982.06 = 625,744.30/x
  3. Step 3: Cross multiply
    988,286.80x = 1,363,982.06 × 625,744.30
  4. Step 4: Simplify right side
    988,286.80x = 853,503,999,347.26
  5. Step 5: Solve for x
    x = 853,503,999,347.26/988,286.80
  6. Step 6: Final answer
    x = 863,619.75

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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.