Home / 939,298.56-1,408,993.92-378,257.28

Finding the Fourth Proportional to 939,298.56, 1,408,993.92 and 378,257.28

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Solution

The fourth proportional to 939,298.56, 1,408,993.92 and 378,257.28 is: 567,404.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,298.56 : 1,408,993.92 = 378,257.28 : x
  2. Step 2: Convert to fraction form
    939,298.56/1,408,993.92 = 378,257.28/x
  3. Step 3: Cross multiply
    939,298.56x = 1,408,993.92 × 378,257.28
  4. Step 4: Simplify right side
    939,298.56x = 532,962,207,715.74
  5. Step 5: Solve for x
    x = 532,962,207,715.74/939,298.56
  6. Step 6: Final answer
    x = 567,404.48

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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.