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Finding the Fourth Proportional to 511,277.80, 766,041.90 and 324,070.60

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Solution

The fourth proportional to 511,277.80, 766,041.90 and 324,070.60 is: 485,551.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,277.80 : 766,041.90 = 324,070.60 : x
  2. Step 2: Convert to fraction form
    511,277.80/766,041.90 = 324,070.60/x
  3. Step 3: Cross multiply
    511,277.80x = 766,041.90 × 324,070.60
  4. Step 4: Simplify right side
    511,277.80x = 248,251,658,158.14
  5. Step 5: Solve for x
    x = 248,251,658,158.14/511,277.80
  6. Step 6: Final answer
    x = 485,551.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.