Home / 628,372.65-867,218.49-370,329.87

Finding the Fourth Proportional to 628,372.65, 867,218.49 and 370,329.87

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Solution

The fourth proportional to 628,372.65, 867,218.49 and 370,329.87 is: 511,093.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,372.65 : 867,218.49 = 370,329.87 : x
  2. Step 2: Convert to fraction form
    628,372.65/867,218.49 = 370,329.87/x
  3. Step 3: Cross multiply
    628,372.65x = 867,218.49 × 370,329.87
  4. Step 4: Simplify right side
    628,372.65x = 321,156,910,663.30
  5. Step 5: Solve for x
    x = 321,156,910,663.30/628,372.65
  6. Step 6: Final answer
    x = 511,093.08

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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.