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Finding the Fourth Proportional to 572,323.86, 858,504.06 and 287,859.14

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Solution

The fourth proportional to 572,323.86, 858,504.06 and 287,859.14 is: 431,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,323.86 : 858,504.06 = 287,859.14 : x
  2. Step 2: Convert to fraction form
    572,323.86/858,504.06 = 287,859.14/x
  3. Step 3: Cross multiply
    572,323.86x = 858,504.06 × 287,859.14
  4. Step 4: Simplify right side
    572,323.86x = 247,128,240,398.11
  5. Step 5: Solve for x
    x = 247,128,240,398.11/572,323.86
  6. Step 6: Final answer
    x = 431,797.90

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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.