Home / 918,713.43-1,378,349.90-469,749.66

Finding the Fourth Proportional to 918,713.43, 1,378,349.90 and 469,749.66

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Solution

The fourth proportional to 918,713.43, 1,378,349.90 and 469,749.66 is: 704,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,713.43 : 1,378,349.90 = 469,749.66 : x
  2. Step 2: Convert to fraction form
    918,713.43/1,378,349.90 = 469,749.66/x
  3. Step 3: Cross multiply
    918,713.43x = 1,378,349.90 × 469,749.66
  4. Step 4: Simplify right side
    918,713.43x = 647,479,394,537.29
  5. Step 5: Solve for x
    x = 647,479,394,537.29/918,713.43
  6. Step 6: Final answer
    x = 704,767.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.