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Finding the Fourth Proportional to 528,604.42, 792,899.53 and 129,248.63

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Solution

The fourth proportional to 528,604.42, 792,899.53 and 129,248.63 is: 193,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,604.42 : 792,899.53 = 129,248.63 : x
  2. Step 2: Convert to fraction form
    528,604.42/792,899.53 = 129,248.63/x
  3. Step 3: Cross multiply
    528,604.42x = 792,899.53 × 129,248.63
  4. Step 4: Simplify right side
    528,604.42x = 102,481,177,980.14
  5. Step 5: Solve for x
    x = 102,481,177,980.14/528,604.42
  6. Step 6: Final answer
    x = 193,871.21

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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.