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Finding the Fourth Proportional to 543,452.21, 749,987.46 and 301,734.79

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Solution

The fourth proportional to 543,452.21, 749,987.46 and 301,734.79 is: 416,407.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,452.21 : 749,987.46 = 301,734.79 : x
  2. Step 2: Convert to fraction form
    543,452.21/749,987.46 = 301,734.79/x
  3. Step 3: Cross multiply
    543,452.21x = 749,987.46 × 301,734.79
  4. Step 4: Simplify right side
    543,452.21x = 226,297,306,870.77
  5. Step 5: Solve for x
    x = 226,297,306,870.77/543,452.21
  6. Step 6: Final answer
    x = 416,407.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.