Home / 1,246,861.36-1,719,520.47-787,177.18

Finding the Fourth Proportional to 1,246,861.36, 1,719,520.47 and 787,177.18

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Solution

The fourth proportional to 1,246,861.36, 1,719,520.47 and 787,177.18 is: 1,085,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246,861.36 : 1,719,520.47 = 787,177.18 : x
  2. Step 2: Convert to fraction form
    1,246,861.36/1,719,520.47 = 787,177.18/x
  3. Step 3: Cross multiply
    1,246,861.36x = 1,719,520.47 × 787,177.18
  4. Step 4: Simplify right side
    1,246,861.36x = 1,353,567,274,526.87
  5. Step 5: Solve for x
    x = 1,353,567,274,526.87/1,246,861.36
  6. Step 6: Final answer
    x = 1,085,579.61

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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.