Home / 626,996.62-865,011.18-355,001.86

Finding the Fourth Proportional to 626,996.62, 865,011.18 and 355,001.86

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Solution

The fourth proportional to 626,996.62, 865,011.18 and 355,001.86 is: 489,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,996.62 : 865,011.18 = 355,001.86 : x
  2. Step 2: Convert to fraction form
    626,996.62/865,011.18 = 355,001.86/x
  3. Step 3: Cross multiply
    626,996.62x = 865,011.18 × 355,001.86
  4. Step 4: Simplify right side
    626,996.62x = 307,080,577,820.80
  5. Step 5: Solve for x
    x = 307,080,577,820.80/626,996.62
  6. Step 6: Final answer
    x = 489,764.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.