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Finding the Fourth Proportional to 556,688.31, 768,229.92 and 302,039.52

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Solution

The fourth proportional to 556,688.31, 768,229.92 and 302,039.52 is: 416,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,688.31 : 768,229.92 = 302,039.52 : x
  2. Step 2: Convert to fraction form
    556,688.31/768,229.92 = 302,039.52/x
  3. Step 3: Cross multiply
    556,688.31x = 768,229.92 × 302,039.52
  4. Step 4: Simplify right side
    556,688.31x = 232,035,796,286.44
  5. Step 5: Solve for x
    x = 232,035,796,286.44/556,688.31
  6. Step 6: Final answer
    x = 416,814.57

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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.