Home / 3,938,390.31-5,907,586.49-1,242,926.48

Finding the Fourth Proportional to 3,938,390.31, 5,907,586.49 and 1,242,926.48

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Solution

The fourth proportional to 3,938,390.31, 5,907,586.49 and 1,242,926.48 is: 1,864,390.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,390.31 : 5,907,586.49 = 1,242,926.48 : x
  2. Step 2: Convert to fraction form
    3,938,390.31/5,907,586.49 = 1,242,926.48/x
  3. Step 3: Cross multiply
    3,938,390.31x = 5,907,586.49 × 1,242,926.48
  4. Step 4: Simplify right side
    3,938,390.31x = 7,342,695,681,311.26
  5. Step 5: Solve for x
    x = 7,342,695,681,311.26/3,938,390.31
  6. Step 6: Final answer
    x = 1,864,390.04

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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.