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Finding the Fourth Proportional to 523,475.92, 785,604.66 and 388,850.82

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Solution

The fourth proportional to 523,475.92, 785,604.66 and 388,850.82 is: 583,566.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,475.92 : 785,604.66 = 388,850.82 : x
  2. Step 2: Convert to fraction form
    523,475.92/785,604.66 = 388,850.82/x
  3. Step 3: Cross multiply
    523,475.92x = 785,604.66 × 388,850.82
  4. Step 4: Simplify right side
    523,475.92x = 305,483,016,236.82
  5. Step 5: Solve for x
    x = 305,483,016,236.82/523,475.92
  6. Step 6: Final answer
    x = 583,566.51

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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.