Home / 3,938,862.47-5,908,293.09-1,245,078.68

Finding the Fourth Proportional to 3,938,862.47, 5,908,293.09 and 1,245,078.68

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Solution

The fourth proportional to 3,938,862.47, 5,908,293.09 and 1,245,078.68 is: 1,867,617.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,862.47 : 5,908,293.09 = 1,245,078.68 : x
  2. Step 2: Convert to fraction form
    3,938,862.47/5,908,293.09 = 1,245,078.68/x
  3. Step 3: Cross multiply
    3,938,862.47x = 5,908,293.09 × 1,245,078.68
  4. Step 4: Simplify right side
    3,938,862.47x = 7,356,289,732,008.86
  5. Step 5: Solve for x
    x = 7,356,289,732,008.86/3,938,862.47
  6. Step 6: Final answer
    x = 1,867,617.82

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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.