Home / 1,938,468.22-2,675,913.17-1,380,022.53

Finding the Fourth Proportional to 1,938,468.22, 2,675,913.17 and 1,380,022.53

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Solution

The fourth proportional to 1,938,468.22, 2,675,913.17 and 1,380,022.53 is: 1,905,019.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,468.22 : 2,675,913.17 = 1,380,022.53 : x
  2. Step 2: Convert to fraction form
    1,938,468.22/2,675,913.17 = 1,380,022.53/x
  3. Step 3: Cross multiply
    1,938,468.22x = 2,675,913.17 × 1,380,022.53
  4. Step 4: Simplify right side
    1,938,468.22x = 3,692,820,461,040.95
  5. Step 5: Solve for x
    x = 3,692,820,461,040.95/1,938,468.22
  6. Step 6: Final answer
    x = 1,905,019.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.