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Finding the Fourth Proportional to 578,270.61, 798,503.31 and 363,479.85

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Solution

The fourth proportional to 578,270.61, 798,503.31 and 363,479.85 is: 501,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,270.61 : 798,503.31 = 363,479.85 : x
  2. Step 2: Convert to fraction form
    578,270.61/798,503.31 = 363,479.85/x
  3. Step 3: Cross multiply
    578,270.61x = 798,503.31 × 363,479.85
  4. Step 4: Simplify right side
    578,270.61x = 290,239,863,343.30
  5. Step 5: Solve for x
    x = 290,239,863,343.30/578,270.61
  6. Step 6: Final answer
    x = 501,910.11

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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.