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Finding the Fourth Proportional to 519,782.86, 717,306.33 and 304,926.58

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Solution

The fourth proportional to 519,782.86, 717,306.33 and 304,926.58 is: 420,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,782.86 : 717,306.33 = 304,926.58 : x
  2. Step 2: Convert to fraction form
    519,782.86/717,306.33 = 304,926.58/x
  3. Step 3: Cross multiply
    519,782.86x = 717,306.33 × 304,926.58
  4. Step 4: Simplify right side
    519,782.86x = 218,725,766,019.25
  5. Step 5: Solve for x
    x = 218,725,766,019.25/519,782.86
  6. Step 6: Final answer
    x = 420,802.19

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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.