Home / 793,225.20-1,189,400.40-319,375.20

Finding the Fourth Proportional to 793,225.20, 1,189,400.40 and 319,375.20

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Solution

The fourth proportional to 793,225.20, 1,189,400.40 and 319,375.20 is: 478,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,225.20 : 1,189,400.40 = 319,375.20 : x
  2. Step 2: Convert to fraction form
    793,225.20/1,189,400.40 = 319,375.20/x
  3. Step 3: Cross multiply
    793,225.20x = 1,189,400.40 × 319,375.20
  4. Step 4: Simplify right side
    793,225.20x = 379,864,990,630.08
  5. Step 5: Solve for x
    x = 379,864,990,630.08/793,225.20
  6. Step 6: Final answer
    x = 478,886.69

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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.