Home / 2,109,915.12-3,164,828.40-512,486.04

Finding the Fourth Proportional to 2,109,915.12, 3,164,828.40 and 512,486.04

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Solution

The fourth proportional to 2,109,915.12, 3,164,828.40 and 512,486.04 is: 768,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,915.12 : 3,164,828.40 = 512,486.04 : x
  2. Step 2: Convert to fraction form
    2,109,915.12/3,164,828.40 = 512,486.04/x
  3. Step 3: Cross multiply
    2,109,915.12x = 3,164,828.40 × 512,486.04
  4. Step 4: Simplify right side
    2,109,915.12x = 1,621,930,373,995.54
  5. Step 5: Solve for x
    x = 1,621,930,373,995.54/2,109,915.12
  6. Step 6: Final answer
    x = 768,718.30

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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.