Home / 455,434.23-628,519.44-261,904.77

Finding the Fourth Proportional to 455,434.23, 628,519.44 and 261,904.77

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Solution

The fourth proportional to 455,434.23, 628,519.44 and 261,904.77 is: 361,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,434.23 : 628,519.44 = 261,904.77 : x
  2. Step 2: Convert to fraction form
    455,434.23/628,519.44 = 261,904.77/x
  3. Step 3: Cross multiply
    455,434.23x = 628,519.44 × 261,904.77
  4. Step 4: Simplify right side
    455,434.23x = 164,612,239,373.73
  5. Step 5: Solve for x
    x = 164,612,239,373.73/455,434.23
  6. Step 6: Final answer
    x = 361,440.20

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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.