Home / 1,242,639.87-1,863,956.67-344,078.61

Finding the Fourth Proportional to 1,242,639.87, 1,863,956.67 and 344,078.61

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Solution

The fourth proportional to 1,242,639.87, 1,863,956.67 and 344,078.61 is: 516,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,639.87 : 1,863,956.67 = 344,078.61 : x
  2. Step 2: Convert to fraction form
    1,242,639.87/1,863,956.67 = 344,078.61/x
  3. Step 3: Cross multiply
    1,242,639.87x = 1,863,956.67 × 344,078.61
  4. Step 4: Simplify right side
    1,242,639.87x = 641,347,620,113.83
  5. Step 5: Solve for x
    x = 641,347,620,113.83/1,242,639.87
  6. Step 6: Final answer
    x = 516,117.05

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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.