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Finding the Fourth Proportional to 572,350.69, 858,544.32 and 287,885.89

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Solution

The fourth proportional to 572,350.69, 858,544.32 and 287,885.89 is: 431,838.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,350.69 : 858,544.32 = 287,885.89 : x
  2. Step 2: Convert to fraction form
    572,350.69/858,544.32 = 287,885.89/x
  3. Step 3: Cross multiply
    572,350.69x = 858,544.32 × 287,885.89
  4. Step 4: Simplify right side
    572,350.69x = 247,162,795,667.65
  5. Step 5: Solve for x
    x = 247,162,795,667.65/572,350.69
  6. Step 6: Final answer
    x = 431,838.03

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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.