Home / 643,710.24-965,739.56-194,445.72

Finding the Fourth Proportional to 643,710.24, 965,739.56 and 194,445.72

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Solution

The fourth proportional to 643,710.24, 965,739.56 and 194,445.72 is: 291,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,710.24 : 965,739.56 = 194,445.72 : x
  2. Step 2: Convert to fraction form
    643,710.24/965,739.56 = 194,445.72/x
  3. Step 3: Cross multiply
    643,710.24x = 965,739.56 × 194,445.72
  4. Step 4: Simplify right side
    643,710.24x = 187,783,924,076.68
  5. Step 5: Solve for x
    x = 187,783,924,076.68/643,710.24
  6. Step 6: Final answer
    x = 291,721.20

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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.