Home / 979,726.98-1,469,968.32-381,109.84

Finding the Fourth Proportional to 979,726.98, 1,469,968.32 and 381,109.84

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Solution

The fourth proportional to 979,726.98, 1,469,968.32 and 381,109.84 is: 571,811.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,726.98 : 1,469,968.32 = 381,109.84 : x
  2. Step 2: Convert to fraction form
    979,726.98/1,469,968.32 = 381,109.84/x
  3. Step 3: Cross multiply
    979,726.98x = 1,469,968.32 × 381,109.84
  4. Step 4: Simplify right side
    979,726.98x = 560,219,391,240.27
  5. Step 5: Solve for x
    x = 560,219,391,240.27/979,726.98
  6. Step 6: Final answer
    x = 571,811.74

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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.