Home / 987,747.70-1,481,621.20-277,775.72

Finding the Fourth Proportional to 987,747.70, 1,481,621.20 and 277,775.72

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Solution

The fourth proportional to 987,747.70, 1,481,621.20 and 277,775.72 is: 416,663.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,747.70 : 1,481,621.20 = 277,775.72 : x
  2. Step 2: Convert to fraction form
    987,747.70/1,481,621.20 = 277,775.72/x
  3. Step 3: Cross multiply
    987,747.70x = 1,481,621.20 × 277,775.72
  4. Step 4: Simplify right side
    987,747.70x = 411,558,395,597.26
  5. Step 5: Solve for x
    x = 411,558,395,597.26/987,747.70
  6. Step 6: Final answer
    x = 416,663.48

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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.