Home / 1,359,940.40-2,040,412.80-561,291.20

Finding the Fourth Proportional to 1,359,940.40, 2,040,412.80 and 561,291.20

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Solution

The fourth proportional to 1,359,940.40, 2,040,412.80 and 561,291.20 is: 842,144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,940.40 : 2,040,412.80 = 561,291.20 : x
  2. Step 2: Convert to fraction form
    1,359,940.40/2,040,412.80 = 561,291.20/x
  3. Step 3: Cross multiply
    1,359,940.40x = 2,040,412.80 × 561,291.20
  4. Step 4: Simplify right side
    1,359,940.40x = 1,145,265,749,007.36
  5. Step 5: Solve for x
    x = 1,145,265,749,007.36/1,359,940.40
  6. Step 6: Final answer
    x = 842,144.07

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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.