Home / 960,019.20-1,440,028.80-328,876.80

Finding the Fourth Proportional to 960,019.20, 1,440,028.80 and 328,876.80

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Solution

The fourth proportional to 960,019.20, 1,440,028.80 and 328,876.80 is: 493,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,019.20 : 1,440,028.80 = 328,876.80 : x
  2. Step 2: Convert to fraction form
    960,019.20/1,440,028.80 = 328,876.80/x
  3. Step 3: Cross multiply
    960,019.20x = 1,440,028.80 × 328,876.80
  4. Step 4: Simplify right side
    960,019.20x = 473,592,063,651.84
  5. Step 5: Solve for x
    x = 473,592,063,651.84/960,019.20
  6. Step 6: Final answer
    x = 493,315.20

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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.