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Finding the Fourth Proportional to 520,933, 718,891.88 and 282,469

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Solution

The fourth proportional to 520,933, 718,891.88 and 282,469 is: 389,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,933 : 718,891.88 = 282,469 : x
  2. Step 2: Convert to fraction form
    520,933/718,891.88 = 282,469/x
  3. Step 3: Cross multiply
    520,933x = 718,891.88 × 282,469
  4. Step 4: Simplify right side
    520,933x = 203,064,670,451.72
  5. Step 5: Solve for x
    x = 203,064,670,451.72/520,933
  6. Step 6: Final answer
    x = 389,809.57

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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.