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Finding the Fourth Proportional to 979,842.66, 1,469,191.93 and 380,103.01

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Solution

The fourth proportional to 979,842.66, 1,469,191.93 and 380,103.01 is: 569,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,842.66 : 1,469,191.93 = 380,103.01 : x
  2. Step 2: Convert to fraction form
    979,842.66/1,469,191.93 = 380,103.01/x
  3. Step 3: Cross multiply
    979,842.66x = 1,469,191.93 × 380,103.01
  4. Step 4: Simplify right side
    979,842.66x = 558,444,274,860.71
  5. Step 5: Solve for x
    x = 558,444,274,860.71/979,842.66
  6. Step 6: Final answer
    x = 569,932.60

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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.