Home / 842,310.55-1,263,090.39-243,129.25

Finding the Fourth Proportional to 842,310.55, 1,263,090.39 and 243,129.25

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Solution

The fourth proportional to 842,310.55, 1,263,090.39 and 243,129.25 is: 364,585.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,310.55 : 1,263,090.39 = 243,129.25 : x
  2. Step 2: Convert to fraction form
    842,310.55/1,263,090.39 = 243,129.25/x
  3. Step 3: Cross multiply
    842,310.55x = 1,263,090.39 × 243,129.25
  4. Step 4: Simplify right side
    842,310.55x = 307,094,219,202.91
  5. Step 5: Solve for x
    x = 307,094,219,202.91/842,310.55
  6. Step 6: Final answer
    x = 364,585.51

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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.