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Finding the Fourth Proportional to 648,261.97, 894,691.69 and 361,800.51

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Solution

The fourth proportional to 648,261.97, 894,691.69 and 361,800.51 is: 499,335.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,261.97 : 894,691.69 = 361,800.51 : x
  2. Step 2: Convert to fraction form
    648,261.97/894,691.69 = 361,800.51/x
  3. Step 3: Cross multiply
    648,261.97x = 894,691.69 × 361,800.51
  4. Step 4: Simplify right side
    648,261.97x = 323,699,909,734.76
  5. Step 5: Solve for x
    x = 323,699,909,734.76/648,261.97
  6. Step 6: Final answer
    x = 499,335.03

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1.5x scale

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.