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Finding the Fourth Proportional to 578,313.77, 797,977.78 and 363,301.57

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Solution

The fourth proportional to 578,313.77, 797,977.78 and 363,301.57 is: 501,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,313.77 : 797,977.78 = 363,301.57 : x
  2. Step 2: Convert to fraction form
    578,313.77/797,977.78 = 363,301.57/x
  3. Step 3: Cross multiply
    578,313.77x = 797,977.78 × 363,301.57
  4. Step 4: Simplify right side
    578,313.77x = 289,906,580,299.12
  5. Step 5: Solve for x
    x = 289,906,580,299.12/578,313.77
  6. Step 6: Final answer
    x = 501,296.35

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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.