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Finding the Fourth Proportional to 524,679.20, 786,824.40 and 169,704.80

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Solution

The fourth proportional to 524,679.20, 786,824.40 and 169,704.80 is: 254,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,679.20 : 786,824.40 = 169,704.80 : x
  2. Step 2: Convert to fraction form
    524,679.20/786,824.40 = 169,704.80/x
  3. Step 3: Cross multiply
    524,679.20x = 786,824.40 × 169,704.80
  4. Step 4: Simplify right side
    524,679.20x = 133,527,877,437.12
  5. Step 5: Solve for x
    x = 133,527,877,437.12/524,679.20
  6. Step 6: Final answer
    x = 254,494.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.