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Finding the Fourth Proportional to 526,100.60, 726,025.80 and 311,235.14

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Solution

The fourth proportional to 526,100.60, 726,025.80 and 311,235.14 is: 429,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,100.60 : 726,025.80 = 311,235.14 : x
  2. Step 2: Convert to fraction form
    526,100.60/726,025.80 = 311,235.14/x
  3. Step 3: Cross multiply
    526,100.60x = 726,025.80 × 311,235.14
  4. Step 4: Simplify right side
    526,100.60x = 225,964,741,506.61
  5. Step 5: Solve for x
    x = 225,964,741,506.61/526,100.60
  6. Step 6: Final answer
    x = 429,508.62

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1.5x scale

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.