Home / 850,854.48-1,276,777.84-318,749.28

Finding the Fourth Proportional to 850,854.48, 1,276,777.84 and 318,749.28

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Solution

The fourth proportional to 850,854.48, 1,276,777.84 and 318,749.28 is: 478,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,854.48 : 1,276,777.84 = 318,749.28 : x
  2. Step 2: Convert to fraction form
    850,854.48/1,276,777.84 = 318,749.28/x
  3. Step 3: Cross multiply
    850,854.48x = 1,276,777.84 × 318,749.28
  4. Step 4: Simplify right side
    850,854.48x = 406,972,017,219.96
  5. Step 5: Solve for x
    x = 406,972,017,219.96/850,854.48
  6. Step 6: Final answer
    x = 478,309.78

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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.