Home / 2,640,109.01-3,960,130.05-842,969.70

Finding the Fourth Proportional to 2,640,109.01, 3,960,130.05 and 842,969.70

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Solution

The fourth proportional to 2,640,109.01, 3,960,130.05 and 842,969.70 is: 1,264,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,109.01 : 3,960,130.05 = 842,969.70 : x
  2. Step 2: Convert to fraction form
    2,640,109.01/3,960,130.05 = 842,969.70/x
  3. Step 3: Cross multiply
    2,640,109.01x = 3,960,130.05 × 842,969.70
  4. Step 4: Simplify right side
    2,640,109.01x = 3,338,269,640,209.49
  5. Step 5: Solve for x
    x = 3,338,269,640,209.49/2,640,109.01
  6. Step 6: Final answer
    x = 1,264,443.87

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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.