Home / 1,640,237.80-2,462,199.90-1,267,911.40

Finding the Fourth Proportional to 1,640,237.80, 2,462,199.90 and 1,267,911.40

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Solution

The fourth proportional to 1,640,237.80, 2,462,199.90 and 1,267,911.40 is: 1,903,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,237.80 : 2,462,199.90 = 1,267,911.40 : x
  2. Step 2: Convert to fraction form
    1,640,237.80/2,462,199.90 = 1,267,911.40/x
  3. Step 3: Cross multiply
    1,640,237.80x = 2,462,199.90 × 1,267,911.40
  4. Step 4: Simplify right side
    1,640,237.80x = 3,121,851,322,288.86
  5. Step 5: Solve for x
    x = 3,121,851,322,288.86/1,640,237.80
  6. Step 6: Final answer
    x = 1,903,291.90

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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.