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Finding the Fourth Proportional to 979,841.66, 1,469,190.44 and 380,102.01

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Solution

The fourth proportional to 979,841.66, 1,469,190.44 and 380,102.01 is: 569,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,841.66 : 1,469,190.44 = 380,102.01 : x
  2. Step 2: Convert to fraction form
    979,841.66/1,469,190.44 = 380,102.01/x
  3. Step 3: Cross multiply
    979,841.66x = 1,469,190.44 × 380,102.01
  4. Step 4: Simplify right side
    979,841.66x = 558,442,237,416.27
  5. Step 5: Solve for x
    x = 558,442,237,416.27/979,841.66
  6. Step 6: Final answer
    x = 569,931.11

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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.