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Finding the Fourth Proportional to 647,994.48, 894,282.56 and 357,662.94

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Solution

The fourth proportional to 647,994.48, 894,282.56 and 357,662.94 is: 493,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,994.48 : 894,282.56 = 357,662.94 : x
  2. Step 2: Convert to fraction form
    647,994.48/894,282.56 = 357,662.94/x
  3. Step 3: Cross multiply
    647,994.48x = 894,282.56 × 357,662.94
  4. Step 4: Simplify right side
    647,994.48x = 319,851,729,600.33
  5. Step 5: Solve for x
    x = 319,851,729,600.33/647,994.48
  6. Step 6: Final answer
    x = 493,602.55

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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.