Home / 751,914.83-1,127,938.65-212,175.87

Finding the Fourth Proportional to 751,914.83, 1,127,938.65 and 212,175.87

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Solution

The fourth proportional to 751,914.83, 1,127,938.65 and 212,175.87 is: 318,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,914.83 : 1,127,938.65 = 212,175.87 : x
  2. Step 2: Convert to fraction form
    751,914.83/1,127,938.65 = 212,175.87/x
  3. Step 3: Cross multiply
    751,914.83x = 1,127,938.65 × 212,175.87
  4. Step 4: Simplify right side
    751,914.83x = 239,321,359,344.95
  5. Step 5: Solve for x
    x = 239,321,359,344.95/751,914.83
  6. Step 6: Final answer
    x = 318,282.54

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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.