Home / 768,540.67-1,152,023.55-319,522.30

Finding the Fourth Proportional to 768,540.67, 1,152,023.55 and 319,522.30

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Solution

The fourth proportional to 768,540.67, 1,152,023.55 and 319,522.30 is: 478,956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,540.67 : 1,152,023.55 = 319,522.30 : x
  2. Step 2: Convert to fraction form
    768,540.67/1,152,023.55 = 319,522.30/x
  3. Step 3: Cross multiply
    768,540.67x = 1,152,023.55 × 319,522.30
  4. Step 4: Simplify right side
    768,540.67x = 368,097,214,350.17
  5. Step 5: Solve for x
    x = 368,097,214,350.17/768,540.67
  6. Step 6: Final answer
    x = 478,956.06

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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.