Home / 1,212,080.72-1,817,725.41-402,247.62

Finding the Fourth Proportional to 1,212,080.72, 1,817,725.41 and 402,247.62

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Solution

The fourth proportional to 1,212,080.72, 1,817,725.41 and 402,247.62 is: 603,240.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,080.72 : 1,817,725.41 = 402,247.62 : x
  2. Step 2: Convert to fraction form
    1,212,080.72/1,817,725.41 = 402,247.62/x
  3. Step 3: Cross multiply
    1,212,080.72x = 1,817,725.41 × 402,247.62
  4. Step 4: Simplify right side
    1,212,080.72x = 731,175,719,986.02
  5. Step 5: Solve for x
    x = 731,175,719,986.02/1,212,080.72
  6. Step 6: Final answer
    x = 603,240.12

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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.