Home / 939,821.64-1,296,919.11-510,092.56

Finding the Fourth Proportional to 939,821.64, 1,296,919.11 and 510,092.56

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Solution

The fourth proportional to 939,821.64, 1,296,919.11 and 510,092.56 is: 703,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,821.64 : 1,296,919.11 = 510,092.56 : x
  2. Step 2: Convert to fraction form
    939,821.64/1,296,919.11 = 510,092.56/x
  3. Step 3: Cross multiply
    939,821.64x = 1,296,919.11 × 510,092.56
  4. Step 4: Simplify right side
    939,821.64x = 661,548,788,932.82
  5. Step 5: Solve for x
    x = 661,548,788,932.82/939,821.64
  6. Step 6: Final answer
    x = 703,908.87

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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.