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Finding the Fourth Proportional to 572,349.64, 858,530.40 and 172,993.72

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Solution

The fourth proportional to 572,349.64, 858,530.40 and 172,993.72 is: 259,492.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,349.64 : 858,530.40 = 172,993.72 : x
  2. Step 2: Convert to fraction form
    572,349.64/858,530.40 = 172,993.72/x
  3. Step 3: Cross multiply
    572,349.64x = 858,530.40 × 172,993.72
  4. Step 4: Simplify right side
    572,349.64x = 148,520,367,629.09
  5. Step 5: Solve for x
    x = 148,520,367,629.09/572,349.64
  6. Step 6: Final answer
    x = 259,492.38

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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.