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Finding the Fourth Proportional to 585,390.78, 877,456.24 and 382,910.64

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Solution

The fourth proportional to 585,390.78, 877,456.24 and 382,910.64 is: 573,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,390.78 : 877,456.24 = 382,910.64 : x
  2. Step 2: Convert to fraction form
    585,390.78/877,456.24 = 382,910.64/x
  3. Step 3: Cross multiply
    585,390.78x = 877,456.24 × 382,910.64
  4. Step 4: Simplify right side
    585,390.78x = 335,987,330,430.39
  5. Step 5: Solve for x
    x = 335,987,330,430.39/585,390.78
  6. Step 6: Final answer
    x = 573,953.92

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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.