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Finding the Fourth Proportional to 585,422.78, 877,530.24 and 285,532.83

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Solution

The fourth proportional to 585,422.78, 877,530.24 and 285,532.83 is: 428,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,422.78 : 877,530.24 = 285,532.83 : x
  2. Step 2: Convert to fraction form
    585,422.78/877,530.24 = 285,532.83/x
  3. Step 3: Cross multiply
    585,422.78x = 877,530.24 × 285,532.83
  4. Step 4: Simplify right side
    585,422.78x = 250,563,692,837.78
  5. Step 5: Solve for x
    x = 250,563,692,837.78/585,422.78
  6. Step 6: Final answer
    x = 428,004.69

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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.