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Finding the Fourth Proportional to 526,607.43, 726,715.26 and 284,889.30

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Solution

The fourth proportional to 526,607.43, 726,715.26 and 284,889.30 is: 393,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,607.43 : 726,715.26 = 284,889.30 : x
  2. Step 2: Convert to fraction form
    526,607.43/726,715.26 = 284,889.30/x
  3. Step 3: Cross multiply
    526,607.43x = 726,715.26 × 284,889.30
  4. Step 4: Simplify right side
    526,607.43x = 207,033,401,720.72
  5. Step 5: Solve for x
    x = 207,033,401,720.72/526,607.43
  6. Step 6: Final answer
    x = 393,145.61

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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.