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Finding the Fourth Proportional to 578,309.77, 797,972.27 and 363,297.57

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Solution

The fourth proportional to 578,309.77, 797,972.27 and 363,297.57 is: 501,290.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,309.77 : 797,972.27 = 363,297.57 : x
  2. Step 2: Convert to fraction form
    578,309.77/797,972.27 = 363,297.57/x
  3. Step 3: Cross multiply
    578,309.77x = 797,972.27 × 363,297.57
  4. Step 4: Simplify right side
    578,309.77x = 289,901,386,618.38
  5. Step 5: Solve for x
    x = 289,901,386,618.38/578,309.77
  6. Step 6: Final answer
    x = 501,290.83

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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.