Home / 1,928,691.78-2,893,031.90-489,372.41

Finding the Fourth Proportional to 1,928,691.78, 2,893,031.90 and 489,372.41

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Solution

The fourth proportional to 1,928,691.78, 2,893,031.90 and 489,372.41 is: 734,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,691.78 : 2,893,031.90 = 489,372.41 : x
  2. Step 2: Convert to fraction form
    1,928,691.78/2,893,031.90 = 489,372.41/x
  3. Step 3: Cross multiply
    1,928,691.78x = 2,893,031.90 × 489,372.41
  4. Step 4: Simplify right side
    1,928,691.78x = 1,415,769,979,868.15
  5. Step 5: Solve for x
    x = 1,415,769,979,868.15/1,928,691.78
  6. Step 6: Final answer
    x = 734,057.14

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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.