Home / 1,277,660.40-1,916,490.60-379,240.80

Finding the Fourth Proportional to 1,277,660.40, 1,916,490.60 and 379,240.80

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Solution

The fourth proportional to 1,277,660.40, 1,916,490.60 and 379,240.80 is: 568,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,660.40 : 1,916,490.60 = 379,240.80 : x
  2. Step 2: Convert to fraction form
    1,277,660.40/1,916,490.60 = 379,240.80/x
  3. Step 3: Cross multiply
    1,277,660.40x = 1,916,490.60 × 379,240.80
  4. Step 4: Simplify right side
    1,277,660.40x = 726,811,428,336.48
  5. Step 5: Solve for x
    x = 726,811,428,336.48/1,277,660.40
  6. Step 6: Final answer
    x = 568,861.20

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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.