Home / 987,738.60-1,481,672.70-277,789.80

Finding the Fourth Proportional to 987,738.60, 1,481,672.70 and 277,789.80

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Solution

The fourth proportional to 987,738.60, 1,481,672.70 and 277,789.80 is: 416,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,738.60 : 1,481,672.70 = 277,789.80 : x
  2. Step 2: Convert to fraction form
    987,738.60/1,481,672.70 = 277,789.80/x
  3. Step 3: Cross multiply
    987,738.60x = 1,481,672.70 × 277,789.80
  4. Step 4: Simplify right side
    987,738.60x = 411,593,562,998.46
  5. Step 5: Solve for x
    x = 411,593,562,998.46/987,738.60
  6. Step 6: Final answer
    x = 416,702.92

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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.