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Finding the Fourth Proportional to 572,298.96, 858,250.14 and 287,879.58

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Solution

The fourth proportional to 572,298.96, 858,250.14 and 287,879.58 is: 431,719.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,298.96 : 858,250.14 = 287,879.58 : x
  2. Step 2: Convert to fraction form
    572,298.96/858,250.14 = 287,879.58/x
  3. Step 3: Cross multiply
    572,298.96x = 858,250.14 × 287,879.58
  4. Step 4: Simplify right side
    572,298.96x = 247,072,689,838.14
  5. Step 5: Solve for x
    x = 247,072,689,838.14/572,298.96
  6. Step 6: Final answer
    x = 431,719.62

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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.