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Finding the Fourth Proportional to 451,312.56, 676,987.56 and 372,279.60

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Solution

The fourth proportional to 451,312.56, 676,987.56 and 372,279.60 is: 558,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,312.56 : 676,987.56 = 372,279.60 : x
  2. Step 2: Convert to fraction form
    451,312.56/676,987.56 = 372,279.60/x
  3. Step 3: Cross multiply
    451,312.56x = 676,987.56 × 372,279.60
  4. Step 4: Simplify right side
    451,312.56x = 252,028,658,041.78
  5. Step 5: Solve for x
    x = 252,028,658,041.78/451,312.56
  6. Step 6: Final answer
    x = 558,434.84

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