Home / 654,302.20-982,029.30-387,729.40

Finding the Fourth Proportional to 654,302.20, 982,029.30 and 387,729.40

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Solution

The fourth proportional to 654,302.20, 982,029.30 and 387,729.40 is: 581,935.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,302.20 : 982,029.30 = 387,729.40 : x
  2. Step 2: Convert to fraction form
    654,302.20/982,029.30 = 387,729.40/x
  3. Step 3: Cross multiply
    654,302.20x = 982,029.30 × 387,729.40
  4. Step 4: Simplify right side
    654,302.20x = 380,761,631,271.42
  5. Step 5: Solve for x
    x = 380,761,631,271.42/654,302.20
  6. Step 6: Final answer
    x = 581,935.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.