Home / 979,867.40-1,469,422.02-380,749.69

Finding the Fourth Proportional to 979,867.40, 1,469,422.02 and 380,749.69

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Solution

The fourth proportional to 979,867.40, 1,469,422.02 and 380,749.69 is: 570,977.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,867.40 : 1,469,422.02 = 380,749.69 : x
  2. Step 2: Convert to fraction form
    979,867.40/1,469,422.02 = 380,749.69/x
  3. Step 3: Cross multiply
    979,867.40x = 1,469,422.02 × 380,749.69
  4. Step 4: Simplify right side
    979,867.40x = 559,481,971,247.06
  5. Step 5: Solve for x
    x = 559,481,971,247.06/979,867.40
  6. Step 6: Final answer
    x = 570,977.23

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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.