Home / 448,318.11-672,145-270,783.61

Finding the Fourth Proportional to 448,318.11, 672,145 and 270,783.61

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Solution

The fourth proportional to 448,318.11, 672,145 and 270,783.61 is: 405,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,318.11 : 672,145 = 270,783.61 : x
  2. Step 2: Convert to fraction form
    448,318.11/672,145 = 270,783.61/x
  3. Step 3: Cross multiply
    448,318.11x = 672,145 × 270,783.61
  4. Step 4: Simplify right side
    448,318.11x = 182,005,849,543.45
  5. Step 5: Solve for x
    x = 182,005,849,543.45/448,318.11
  6. Step 6: Final answer
    x = 405,974.79

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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.