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Finding the Fourth Proportional to 508,500.54, 763,941.83 and 479,775.20

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Solution

The fourth proportional to 508,500.54, 763,941.83 and 479,775.20 is: 720,786.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,500.54 : 763,941.83 = 479,775.20 : x
  2. Step 2: Convert to fraction form
    508,500.54/763,941.83 = 479,775.20/x
  3. Step 3: Cross multiply
    508,500.54x = 763,941.83 × 479,775.20
  4. Step 4: Simplify right side
    508,500.54x = 366,520,338,058.03
  5. Step 5: Solve for x
    x = 366,520,338,058.03/508,500.54
  6. Step 6: Final answer
    x = 720,786.53

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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.