Home / 672,565.80-1,008,299.52-312,961.44

Finding the Fourth Proportional to 672,565.80, 1,008,299.52 and 312,961.44

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Solution

The fourth proportional to 672,565.80, 1,008,299.52 and 312,961.44 is: 469,186.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,565.80 : 1,008,299.52 = 312,961.44 : x
  2. Step 2: Convert to fraction form
    672,565.80/1,008,299.52 = 312,961.44/x
  3. Step 3: Cross multiply
    672,565.80x = 1,008,299.52 × 312,961.44
  4. Step 4: Simplify right side
    672,565.80x = 315,558,869,730.51
  5. Step 5: Solve for x
    x = 315,558,869,730.51/672,565.80
  6. Step 6: Final answer
    x = 469,186.61

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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.