Home / 1,390,747.74-2,085,784.44-379,874.43

Finding the Fourth Proportional to 1,390,747.74, 2,085,784.44 and 379,874.43

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Solution

The fourth proportional to 1,390,747.74, 2,085,784.44 and 379,874.43 is: 569,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,747.74 : 2,085,784.44 = 379,874.43 : x
  2. Step 2: Convert to fraction form
    1,390,747.74/2,085,784.44 = 379,874.43/x
  3. Step 3: Cross multiply
    1,390,747.74x = 2,085,784.44 × 379,874.43
  4. Step 4: Simplify right side
    1,390,747.74x = 792,336,175,247.87
  5. Step 5: Solve for x
    x = 792,336,175,247.87/1,390,747.74
  6. Step 6: Final answer
    x = 569,719.55

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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.