Home / 1,859,443.20-2,567,258.88-1,428,940.80

Finding the Fourth Proportional to 1,859,443.20, 2,567,258.88 and 1,428,940.80

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Solution

The fourth proportional to 1,859,443.20, 2,567,258.88 and 1,428,940.80 is: 1,972,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,443.20 : 2,567,258.88 = 1,428,940.80 : x
  2. Step 2: Convert to fraction form
    1,859,443.20/2,567,258.88 = 1,428,940.80/x
  3. Step 3: Cross multiply
    1,859,443.20x = 2,567,258.88 × 1,428,940.80
  4. Step 4: Simplify right side
    1,859,443.20x = 3,668,460,957,794.30
  5. Step 5: Solve for x
    x = 3,668,460,957,794.30/1,859,443.20
  6. Step 6: Final answer
    x = 1,972,881.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.