Home / 1,980,745.17-2,971,314.65-718,671.21

Finding the Fourth Proportional to 1,980,745.17, 2,971,314.65 and 718,671.21

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Solution

The fourth proportional to 1,980,745.17, 2,971,314.65 and 718,671.21 is: 1,078,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,745.17 : 2,971,314.65 = 718,671.21 : x
  2. Step 2: Convert to fraction form
    1,980,745.17/2,971,314.65 = 718,671.21/x
  3. Step 3: Cross multiply
    1,980,745.17x = 2,971,314.65 × 718,671.21
  4. Step 4: Simplify right side
    1,980,745.17x = 2,135,398,294,806.23
  5. Step 5: Solve for x
    x = 2,135,398,294,806.23/1,980,745.17
  6. Step 6: Final answer
    x = 1,078,078.25

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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.