Home / 979,665.33-1,469,670.21-447,240.18

Finding the Fourth Proportional to 979,665.33, 1,469,670.21 and 447,240.18

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Solution

The fourth proportional to 979,665.33, 1,469,670.21 and 447,240.18 is: 670,938.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,665.33 : 1,469,670.21 = 447,240.18 : x
  2. Step 2: Convert to fraction form
    979,665.33/1,469,670.21 = 447,240.18/x
  3. Step 3: Cross multiply
    979,665.33x = 1,469,670.21 × 447,240.18
  4. Step 4: Simplify right side
    979,665.33x = 657,295,569,261.04
  5. Step 5: Solve for x
    x = 657,295,569,261.04/979,665.33
  6. Step 6: Final answer
    x = 670,938.89

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1.5x scale

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.