Home / 677,450.06-934,983.48-387,122.72

Finding the Fourth Proportional to 677,450.06, 934,983.48 and 387,122.72

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Solution

The fourth proportional to 677,450.06, 934,983.48 and 387,122.72 is: 534,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,450.06 : 934,983.48 = 387,122.72 : x
  2. Step 2: Convert to fraction form
    677,450.06/934,983.48 = 387,122.72/x
  3. Step 3: Cross multiply
    677,450.06x = 934,983.48 × 387,122.72
  4. Step 4: Simplify right side
    677,450.06x = 361,953,345,997.05
  5. Step 5: Solve for x
    x = 361,953,345,997.05/677,450.06
  6. Step 6: Final answer
    x = 534,287.87

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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.