Home / 2,160,214.72-2,981,186.88-1,242,444.12

Finding the Fourth Proportional to 2,160,214.72, 2,981,186.88 and 1,242,444.12

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Solution

The fourth proportional to 2,160,214.72, 2,981,186.88 and 1,242,444.12 is: 1,714,624.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,214.72 : 2,981,186.88 = 1,242,444.12 : x
  2. Step 2: Convert to fraction form
    2,160,214.72/2,981,186.88 = 1,242,444.12/x
  3. Step 3: Cross multiply
    2,160,214.72x = 2,981,186.88 × 1,242,444.12
  4. Step 4: Simplify right side
    2,160,214.72x = 3,703,958,093,838.53
  5. Step 5: Solve for x
    x = 3,703,958,093,838.53/2,160,214.72
  6. Step 6: Final answer
    x = 1,714,624.97

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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.