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Finding the Fourth Proportional to 351,029.40, 526,544.10 and 345,780.60

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Solution

The fourth proportional to 351,029.40, 526,544.10 and 345,780.60 is: 518,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,029.40 : 526,544.10 = 345,780.60 : x
  2. Step 2: Convert to fraction form
    351,029.40/526,544.10 = 345,780.60/x
  3. Step 3: Cross multiply
    351,029.40x = 526,544.10 × 345,780.60
  4. Step 4: Simplify right side
    351,029.40x = 182,068,734,824.46
  5. Step 5: Solve for x
    x = 182,068,734,824.46/351,029.40
  6. Step 6: Final answer
    x = 518,670.90

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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.