Home / 671,812.32-1,008,041.13-419,027.92

Finding the Fourth Proportional to 671,812.32, 1,008,041.13 and 419,027.92

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Solution

The fourth proportional to 671,812.32, 1,008,041.13 and 419,027.92 is: 628,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,812.32 : 1,008,041.13 = 419,027.92 : x
  2. Step 2: Convert to fraction form
    671,812.32/1,008,041.13 = 419,027.92/x
  3. Step 3: Cross multiply
    671,812.32x = 1,008,041.13 × 419,027.92
  4. Step 4: Simplify right side
    671,812.32x = 422,397,377,978.35
  5. Step 5: Solve for x
    x = 422,397,377,978.35/671,812.32
  6. Step 6: Final answer
    x = 628,743.13

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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.