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Finding the Fourth Proportional to 522,471.71, 720,704.75 and 328,571.87

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Solution

The fourth proportional to 522,471.71, 720,704.75 and 328,571.87 is: 453,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,471.71 : 720,704.75 = 328,571.87 : x
  2. Step 2: Convert to fraction form
    522,471.71/720,704.75 = 328,571.87/x
  3. Step 3: Cross multiply
    522,471.71x = 720,704.75 × 328,571.87
  4. Step 4: Simplify right side
    522,471.71x = 236,803,307,425.38
  5. Step 5: Solve for x
    x = 236,803,307,425.38/522,471.71
  6. Step 6: Final answer
    x = 453,236.61

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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.