Home / 769,404.72-1,154,115.80-236,921.52

Finding the Fourth Proportional to 769,404.72, 1,154,115.80 and 236,921.52

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Solution

The fourth proportional to 769,404.72, 1,154,115.80 and 236,921.52 is: 355,384.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,404.72 : 1,154,115.80 = 236,921.52 : x
  2. Step 2: Convert to fraction form
    769,404.72/1,154,115.80 = 236,921.52/x
  3. Step 3: Cross multiply
    769,404.72x = 1,154,115.80 × 236,921.52
  4. Step 4: Simplify right side
    769,404.72x = 273,434,869,592.02
  5. Step 5: Solve for x
    x = 273,434,869,592.02/769,404.72
  6. Step 6: Final answer
    x = 355,384.97

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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.