Home / 1,639,143.60-2,460,712.20-1,040,103.60

Finding the Fourth Proportional to 1,639,143.60, 2,460,712.20 and 1,040,103.60

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Solution

The fourth proportional to 1,639,143.60, 2,460,712.20 and 1,040,103.60 is: 1,561,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,143.60 : 2,460,712.20 = 1,040,103.60 : x
  2. Step 2: Convert to fraction form
    1,639,143.60/2,460,712.20 = 1,040,103.60/x
  3. Step 3: Cross multiply
    1,639,143.60x = 2,460,712.20 × 1,040,103.60
  4. Step 4: Simplify right side
    1,639,143.60x = 2,559,395,617,783.92
  5. Step 5: Solve for x
    x = 2,559,395,617,783.92/1,639,143.60
  6. Step 6: Final answer
    x = 1,561,422.45

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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.