Home / 1,286,336.70-1,941,177.96-1,243,457.73

Finding the Fourth Proportional to 1,286,336.70, 1,941,177.96 and 1,243,457.73

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Solution

The fourth proportional to 1,286,336.70, 1,941,177.96 and 1,243,457.73 is: 1,876,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,336.70 : 1,941,177.96 = 1,243,457.73 : x
  2. Step 2: Convert to fraction form
    1,286,336.70/1,941,177.96 = 1,243,457.73/x
  3. Step 3: Cross multiply
    1,286,336.70x = 1,941,177.96 × 1,243,457.73
  4. Step 4: Simplify right side
    1,286,336.70x = 2,413,772,739,667.63
  5. Step 5: Solve for x
    x = 2,413,772,739,667.63/1,286,336.70
  6. Step 6: Final answer
    x = 1,876,470.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.