Home / 1,942,799.72-2,912,435.39-679,938.44

Finding the Fourth Proportional to 1,942,799.72, 2,912,435.39 and 679,938.44

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Solution

The fourth proportional to 1,942,799.72, 2,912,435.39 and 679,938.44 is: 1,019,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,799.72 : 2,912,435.39 = 679,938.44 : x
  2. Step 2: Convert to fraction form
    1,942,799.72/2,912,435.39 = 679,938.44/x
  3. Step 3: Cross multiply
    1,942,799.72x = 2,912,435.39 × 679,938.44
  4. Step 4: Simplify right side
    1,942,799.72x = 1,980,276,762,815.06
  5. Step 5: Solve for x
    x = 1,980,276,762,815.06/1,942,799.72
  6. Step 6: Final answer
    x = 1,019,290.23

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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.