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Finding the Fourth Proportional to 526,310.21, 726,307.57 and 284,592.21

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Solution

The fourth proportional to 526,310.21, 726,307.57 and 284,592.21 is: 392,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,310.21 : 726,307.57 = 284,592.21 : x
  2. Step 2: Convert to fraction form
    526,310.21/726,307.57 = 284,592.21/x
  3. Step 3: Cross multiply
    526,310.21x = 726,307.57 × 284,592.21
  4. Step 4: Simplify right side
    526,310.21x = 206,701,474,118.12
  5. Step 5: Solve for x
    x = 206,701,474,118.12/526,310.21
  6. Step 6: Final answer
    x = 392,736.96

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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.