Home / 986,876.10-1,479,968.55-513,404.10

Finding the Fourth Proportional to 986,876.10, 1,479,968.55 and 513,404.10

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Solution

The fourth proportional to 986,876.10, 1,479,968.55 and 513,404.10 is: 769,926.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,876.10 : 1,479,968.55 = 513,404.10 : x
  2. Step 2: Convert to fraction form
    986,876.10/1,479,968.55 = 513,404.10/x
  3. Step 3: Cross multiply
    986,876.10x = 1,479,968.55 × 513,404.10
  4. Step 4: Simplify right side
    986,876.10x = 759,821,921,441.06
  5. Step 5: Solve for x
    x = 759,821,921,441.06/986,876.10
  6. Step 6: Final answer
    x = 769,926.36

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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.