Home / 916,939.20-1,375,603.20-277,190.40

Finding the Fourth Proportional to 916,939.20, 1,375,603.20 and 277,190.40

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Solution

The fourth proportional to 916,939.20, 1,375,603.20 and 277,190.40 is: 415,844.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,939.20 : 1,375,603.20 = 277,190.40 : x
  2. Step 2: Convert to fraction form
    916,939.20/1,375,603.20 = 277,190.40/x
  3. Step 3: Cross multiply
    916,939.20x = 1,375,603.20 × 277,190.40
  4. Step 4: Simplify right side
    916,939.20x = 381,304,001,249.28
  5. Step 5: Solve for x
    x = 381,304,001,249.28/916,939.20
  6. Step 6: Final answer
    x = 415,844.37

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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.