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Finding the Fourth Proportional to 536,620.98, 740,636.71 and 307,178.27

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Solution

The fourth proportional to 536,620.98, 740,636.71 and 307,178.27 is: 423,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,620.98 : 740,636.71 = 307,178.27 : x
  2. Step 2: Convert to fraction form
    536,620.98/740,636.71 = 307,178.27/x
  3. Step 3: Cross multiply
    536,620.98x = 740,636.71 × 307,178.27
  4. Step 4: Simplify right side
    536,620.98x = 227,507,498,805.16
  5. Step 5: Solve for x
    x = 227,507,498,805.16/536,620.98
  6. Step 6: Final answer
    x = 423,963.11

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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.