Home / 751,997.11-1,127,915.70-212,240.04

Finding the Fourth Proportional to 751,997.11, 1,127,915.70 and 212,240.04

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Solution

The fourth proportional to 751,997.11, 1,127,915.70 and 212,240.04 is: 318,337.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,997.11 : 1,127,915.70 = 212,240.04 : x
  2. Step 2: Convert to fraction form
    751,997.11/1,127,915.70 = 212,240.04/x
  3. Step 3: Cross multiply
    751,997.11x = 1,127,915.70 × 212,240.04
  4. Step 4: Simplify right side
    751,997.11x = 239,388,875,399.47
  5. Step 5: Solve for x
    x = 239,388,875,399.47/751,997.11
  6. Step 6: Final answer
    x = 318,337.49

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1.5x scale

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.