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Finding the Fourth Proportional to 556,935.44, 768,571.78 and 302,286.74

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Solution

The fourth proportional to 556,935.44, 768,571.78 and 302,286.74 is: 417,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,935.44 : 768,571.78 = 302,286.74 : x
  2. Step 2: Convert to fraction form
    556,935.44/768,571.78 = 302,286.74/x
  3. Step 3: Cross multiply
    556,935.44x = 768,571.78 × 302,286.74
  4. Step 4: Simplify right side
    556,935.44x = 232,329,057,832.20
  5. Step 5: Solve for x
    x = 232,329,057,832.20/556,935.44
  6. Step 6: Final answer
    x = 417,156.17

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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.