Home / 2,912,564.88-4,368,843.51-782,649.06

Finding the Fourth Proportional to 2,912,564.88, 4,368,843.51 and 782,649.06

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Solution

The fourth proportional to 2,912,564.88, 4,368,843.51 and 782,649.06 is: 1,173,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,564.88 : 4,368,843.51 = 782,649.06 : x
  2. Step 2: Convert to fraction form
    2,912,564.88/4,368,843.51 = 782,649.06/x
  3. Step 3: Cross multiply
    2,912,564.88x = 4,368,843.51 × 782,649.06
  4. Step 4: Simplify right side
    2,912,564.88x = 3,419,271,266,388.60
  5. Step 5: Solve for x
    x = 3,419,271,266,388.60/2,912,564.88
  6. Step 6: Final answer
    x = 1,173,972.57

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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.