Home / 1,440,505.94-2,160,868.26-429,548.78

Finding the Fourth Proportional to 1,440,505.94, 2,160,868.26 and 429,548.78

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Solution

The fourth proportional to 1,440,505.94, 2,160,868.26 and 429,548.78 is: 644,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,505.94 : 2,160,868.26 = 429,548.78 : x
  2. Step 2: Convert to fraction form
    1,440,505.94/2,160,868.26 = 429,548.78/x
  3. Step 3: Cross multiply
    1,440,505.94x = 2,160,868.26 × 429,548.78
  4. Step 4: Simplify right side
    1,440,505.94x = 928,198,324,823.72
  5. Step 5: Solve for x
    x = 928,198,324,823.72/1,440,505.94
  6. Step 6: Final answer
    x = 644,355.78

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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.