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Finding the Fourth Proportional to 572,601.80, 858,999.90 and 173,239.40

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Solution

The fourth proportional to 572,601.80, 858,999.90 and 173,239.40 is: 259,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,601.80 : 858,999.90 = 173,239.40 : x
  2. Step 2: Convert to fraction form
    572,601.80/858,999.90 = 173,239.40/x
  3. Step 3: Cross multiply
    572,601.80x = 858,999.90 × 173,239.40
  4. Step 4: Simplify right side
    572,601.80x = 148,812,627,276.06
  5. Step 5: Solve for x
    x = 148,812,627,276.06/572,601.80
  6. Step 6: Final answer
    x = 259,888.51

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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.