Home / 666,960.40-1,001,096.70-330,381.10

Finding the Fourth Proportional to 666,960.40, 1,001,096.70 and 330,381.10

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Solution

The fourth proportional to 666,960.40, 1,001,096.70 and 330,381.10 is: 495,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,960.40 : 1,001,096.70 = 330,381.10 : x
  2. Step 2: Convert to fraction form
    666,960.40/1,001,096.70 = 330,381.10/x
  3. Step 3: Cross multiply
    666,960.40x = 1,001,096.70 × 330,381.10
  4. Step 4: Simplify right side
    666,960.40x = 330,743,428,952.37
  5. Step 5: Solve for x
    x = 330,743,428,952.37/666,960.40
  6. Step 6: Final answer
    x = 495,896.65

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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.