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Finding the Fourth Proportional to 519,750.72, 717,256.08 and 281,286.72

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Solution

The fourth proportional to 519,750.72, 717,256.08 and 281,286.72 is: 388,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,750.72 : 717,256.08 = 281,286.72 : x
  2. Step 2: Convert to fraction form
    519,750.72/717,256.08 = 281,286.72/x
  3. Step 3: Cross multiply
    519,750.72x = 717,256.08 × 281,286.72
  4. Step 4: Simplify right side
    519,750.72x = 201,754,610,143.26
  5. Step 5: Solve for x
    x = 201,754,610,143.26/519,750.72
  6. Step 6: Final answer
    x = 388,175.72

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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.