Home / 751,956.48-1,128,001.20-212,217.54

Finding the Fourth Proportional to 751,956.48, 1,128,001.20 and 212,217.54

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Solution

The fourth proportional to 751,956.48, 1,128,001.20 and 212,217.54 is: 318,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,956.48 : 1,128,001.20 = 212,217.54 : x
  2. Step 2: Convert to fraction form
    751,956.48/1,128,001.20 = 212,217.54/x
  3. Step 3: Cross multiply
    751,956.48x = 1,128,001.20 × 212,217.54
  4. Step 4: Simplify right side
    751,956.48x = 239,381,639,781.05
  5. Step 5: Solve for x
    x = 239,381,639,781.05/751,956.48
  6. Step 6: Final answer
    x = 318,345.07

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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.