Home / 687,633.64-1,031,597.34-214,308.52

Finding the Fourth Proportional to 687,633.64, 1,031,597.34 and 214,308.52

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Solution

The fourth proportional to 687,633.64, 1,031,597.34 and 214,308.52 is: 321,508.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,633.64 : 1,031,597.34 = 214,308.52 : x
  2. Step 2: Convert to fraction form
    687,633.64/1,031,597.34 = 214,308.52/x
  3. Step 3: Cross multiply
    687,633.64x = 1,031,597.34 × 214,308.52
  4. Step 4: Simplify right side
    687,633.64x = 221,080,099,171.34
  5. Step 5: Solve for x
    x = 221,080,099,171.34/687,633.64
  6. Step 6: Final answer
    x = 321,508.56

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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.