Home / 661,244.04-991,836.90-211,987.46

Finding the Fourth Proportional to 661,244.04, 991,836.90 and 211,987.46

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Solution

The fourth proportional to 661,244.04, 991,836.90 and 211,987.46 is: 317,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,244.04 : 991,836.90 = 211,987.46 : x
  2. Step 2: Convert to fraction form
    661,244.04/991,836.90 = 211,987.46/x
  3. Step 3: Cross multiply
    661,244.04x = 991,836.90 × 211,987.46
  4. Step 4: Simplify right side
    661,244.04x = 210,256,987,644.87
  5. Step 5: Solve for x
    x = 210,256,987,644.87/661,244.04
  6. Step 6: Final answer
    x = 317,971.85

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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.