Home / 639,625.37-882,682.78-367,746.42

Finding the Fourth Proportional to 639,625.37, 882,682.78 and 367,746.42

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Solution

The fourth proportional to 639,625.37, 882,682.78 and 367,746.42 is: 507,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,625.37 : 882,682.78 = 367,746.42 : x
  2. Step 2: Convert to fraction form
    639,625.37/882,682.78 = 367,746.42/x
  3. Step 3: Cross multiply
    639,625.37x = 882,682.78 × 367,746.42
  4. Step 4: Simplify right side
    639,625.37x = 324,603,432,340.65
  5. Step 5: Solve for x
    x = 324,603,432,340.65/639,625.37
  6. Step 6: Final answer
    x = 507,489.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.