Home / 979,867.65-1,469,422.40-380,749.94

Finding the Fourth Proportional to 979,867.65, 1,469,422.40 and 380,749.94

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Solution

The fourth proportional to 979,867.65, 1,469,422.40 and 380,749.94 is: 570,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,867.65 : 1,469,422.40 = 380,749.94 : x
  2. Step 2: Convert to fraction form
    979,867.65/1,469,422.40 = 380,749.94/x
  3. Step 3: Cross multiply
    979,867.65x = 1,469,422.40 × 380,749.94
  4. Step 4: Simplify right side
    979,867.65x = 559,482,481,383.79
  5. Step 5: Solve for x
    x = 559,482,481,383.79/979,867.65
  6. Step 6: Final answer
    x = 570,977.60

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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.