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Finding the Fourth Proportional to 520,074.06, 717,706.53 and 281,610.06

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Solution

The fourth proportional to 520,074.06, 717,706.53 and 281,610.06 is: 388,624.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,074.06 : 717,706.53 = 281,610.06 : x
  2. Step 2: Convert to fraction form
    520,074.06/717,706.53 = 281,610.06/x
  3. Step 3: Cross multiply
    520,074.06x = 717,706.53 × 281,610.06
  4. Step 4: Simplify right side
    520,074.06x = 202,113,379,713.92
  5. Step 5: Solve for x
    x = 202,113,379,713.92/520,074.06
  6. Step 6: Final answer
    x = 388,624.23

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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.