Home / 939,648.39-1,296,724.29-509,932.23

Finding the Fourth Proportional to 939,648.39, 1,296,724.29 and 509,932.23

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Solution

The fourth proportional to 939,648.39, 1,296,724.29 and 509,932.23 is: 703,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,648.39 : 1,296,724.29 = 509,932.23 : x
  2. Step 2: Convert to fraction form
    939,648.39/1,296,724.29 = 509,932.23/x
  3. Step 3: Cross multiply
    939,648.39x = 1,296,724.29 × 509,932.23
  4. Step 4: Simplify right side
    939,648.39x = 661,241,508,894.87
  5. Step 5: Solve for x
    x = 661,241,508,894.87/939,648.39
  6. Step 6: Final answer
    x = 703,711.64

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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.