Home / 3,938,675.72-5,909,009.90-1,098,785.75

Finding the Fourth Proportional to 3,938,675.72, 5,909,009.90 and 1,098,785.75

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Solution

The fourth proportional to 3,938,675.72, 5,909,009.90 and 1,098,785.75 is: 1,648,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,675.72 : 5,909,009.90 = 1,098,785.75 : x
  2. Step 2: Convert to fraction form
    3,938,675.72/5,909,009.90 = 1,098,785.75/x
  3. Step 3: Cross multiply
    3,938,675.72x = 5,909,009.90 × 1,098,785.75
  4. Step 4: Simplify right side
    3,938,675.72x = 6,492,735,839,689.95
  5. Step 5: Solve for x
    x = 6,492,735,839,689.95/3,938,675.72
  6. Step 6: Final answer
    x = 1,648,456.56

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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.