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Finding the Fourth Proportional to 556,935.80, 768,572.30 and 302,287

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Solution

The fourth proportional to 556,935.80, 768,572.30 and 302,287 is: 417,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,935.80 : 768,572.30 = 302,287 : x
  2. Step 2: Convert to fraction form
    556,935.80/768,572.30 = 302,287/x
  3. Step 3: Cross multiply
    556,935.80x = 768,572.30 × 302,287
  4. Step 4: Simplify right side
    556,935.80x = 232,329,414,850.10
  5. Step 5: Solve for x
    x = 232,329,414,850.10/556,935.80
  6. Step 6: Final answer
    x = 417,156.55

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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.