Home / 880,322.39-1,320,239.68-311,628.57

Finding the Fourth Proportional to 880,322.39, 1,320,239.68 and 311,628.57

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Solution

The fourth proportional to 880,322.39, 1,320,239.68 and 311,628.57 is: 467,356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,322.39 : 1,320,239.68 = 311,628.57 : x
  2. Step 2: Convert to fraction form
    880,322.39/1,320,239.68 = 311,628.57/x
  3. Step 3: Cross multiply
    880,322.39x = 1,320,239.68 × 311,628.57
  4. Step 4: Simplify right side
    880,322.39x = 411,424,401,977.52
  5. Step 5: Solve for x
    x = 411,424,401,977.52/880,322.39
  6. Step 6: Final answer
    x = 467,356.52

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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.