Home / 463,932.20-640,533.48-356,309.12

Finding the Fourth Proportional to 463,932.20, 640,533.48 and 356,309.12

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Solution

The fourth proportional to 463,932.20, 640,533.48 and 356,309.12 is: 491,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,932.20 : 640,533.48 = 356,309.12 : x
  2. Step 2: Convert to fraction form
    463,932.20/640,533.48 = 356,309.12/x
  3. Step 3: Cross multiply
    463,932.20x = 640,533.48 × 356,309.12
  4. Step 4: Simplify right side
    463,932.20x = 228,227,920,589.34
  5. Step 5: Solve for x
    x = 228,227,920,589.34/463,932.20
  6. Step 6: Final answer
    x = 491,942.40

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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.