Home / 1,242,639.37-1,863,955.92-344,078.11

Finding the Fourth Proportional to 1,242,639.37, 1,863,955.92 and 344,078.11

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Solution

The fourth proportional to 1,242,639.37, 1,863,955.92 and 344,078.11 is: 516,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,639.37 : 1,863,955.92 = 344,078.11 : x
  2. Step 2: Convert to fraction form
    1,242,639.37/1,863,955.92 = 344,078.11/x
  3. Step 3: Cross multiply
    1,242,639.37x = 1,863,955.92 × 344,078.11
  4. Step 4: Simplify right side
    1,242,639.37x = 641,346,430,076.91
  5. Step 5: Solve for x
    x = 641,346,430,076.91/1,242,639.37
  6. Step 6: Final answer
    x = 516,116.30

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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.