Home / 1,396,979.20-2,096,390.40-510,515.20

Finding the Fourth Proportional to 1,396,979.20, 2,096,390.40 and 510,515.20

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Solution

The fourth proportional to 1,396,979.20, 2,096,390.40 and 510,515.20 is: 766,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,979.20 : 2,096,390.40 = 510,515.20 : x
  2. Step 2: Convert to fraction form
    1,396,979.20/2,096,390.40 = 510,515.20/x
  3. Step 3: Cross multiply
    1,396,979.20x = 2,096,390.40 × 510,515.20
  4. Step 4: Simplify right side
    1,396,979.20x = 1,070,239,164,334.08
  5. Step 5: Solve for x
    x = 1,070,239,164,334.08/1,396,979.20
  6. Step 6: Final answer
    x = 766,109.59

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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.