Home / 781,137.64-1,171,706.46-248,656.36

Finding the Fourth Proportional to 781,137.64, 1,171,706.46 and 248,656.36

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Solution

The fourth proportional to 781,137.64, 1,171,706.46 and 248,656.36 is: 372,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,137.64 : 1,171,706.46 = 248,656.36 : x
  2. Step 2: Convert to fraction form
    781,137.64/1,171,706.46 = 248,656.36/x
  3. Step 3: Cross multiply
    781,137.64x = 1,171,706.46 × 248,656.36
  4. Step 4: Simplify right side
    781,137.64x = 291,352,263,332.09
  5. Step 5: Solve for x
    x = 291,352,263,332.09/781,137.64
  6. Step 6: Final answer
    x = 372,984.54

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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.