Home / 791,636.49-1,187,004.87-311,604.12

Finding the Fourth Proportional to 791,636.49, 1,187,004.87 and 311,604.12

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Solution

The fourth proportional to 791,636.49, 1,187,004.87 and 311,604.12 is: 467,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,636.49 : 1,187,004.87 = 311,604.12 : x
  2. Step 2: Convert to fraction form
    791,636.49/1,187,004.87 = 311,604.12/x
  3. Step 3: Cross multiply
    791,636.49x = 1,187,004.87 × 311,604.12
  4. Step 4: Simplify right side
    791,636.49x = 369,875,607,952.06
  5. Step 5: Solve for x
    x = 369,875,607,952.06/791,636.49
  6. Step 6: Final answer
    x = 467,229.10

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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.