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Finding the Fourth Proportional to 520,074, 717,706.44 and 281,610

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Solution

The fourth proportional to 520,074, 717,706.44 and 281,610 is: 388,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,074 : 717,706.44 = 281,610 : x
  2. Step 2: Convert to fraction form
    520,074/717,706.44 = 281,610/x
  3. Step 3: Cross multiply
    520,074x = 717,706.44 × 281,610
  4. Step 4: Simplify right side
    520,074x = 202,113,310,568.40
  5. Step 5: Solve for x
    x = 202,113,310,568.40/520,074
  6. Step 6: Final answer
    x = 388,624.14

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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.