Home / 919,167.67-1,378,828.68-279,476.96

Finding the Fourth Proportional to 919,167.67, 1,378,828.68 and 279,476.96

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Solution

The fourth proportional to 919,167.67, 1,378,828.68 and 279,476.96 is: 419,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,167.67 : 1,378,828.68 = 279,476.96 : x
  2. Step 2: Convert to fraction form
    919,167.67/1,378,828.68 = 279,476.96/x
  3. Step 3: Cross multiply
    919,167.67x = 1,378,828.68 × 279,476.96
  4. Step 4: Simplify right side
    919,167.67x = 385,350,856,030.85
  5. Step 5: Solve for x
    x = 385,350,856,030.85/919,167.67
  6. Step 6: Final answer
    x = 419,238.91

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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.