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Finding the Fourth Proportional to 535,404.52, 738,825.06 and 320,562.28

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Solution

The fourth proportional to 535,404.52, 738,825.06 and 320,562.28 is: 442,356.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,404.52 : 738,825.06 = 320,562.28 : x
  2. Step 2: Convert to fraction form
    535,404.52/738,825.06 = 320,562.28/x
  3. Step 3: Cross multiply
    535,404.52x = 738,825.06 × 320,562.28
  4. Step 4: Simplify right side
    535,404.52x = 236,839,445,754.74
  5. Step 5: Solve for x
    x = 236,839,445,754.74/535,404.52
  6. Step 6: Final answer
    x = 442,356.08

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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.