Home / 863,356.60-1,294,296.49-331,259.50

Finding the Fourth Proportional to 863,356.60, 1,294,296.49 and 331,259.50

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Solution

The fourth proportional to 863,356.60, 1,294,296.49 and 331,259.50 is: 496,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,356.60 : 1,294,296.49 = 331,259.50 : x
  2. Step 2: Convert to fraction form
    863,356.60/1,294,296.49 = 331,259.50/x
  3. Step 3: Cross multiply
    863,356.60x = 1,294,296.49 × 331,259.50
  4. Step 4: Simplify right side
    863,356.60x = 428,748,008,129.16
  5. Step 5: Solve for x
    x = 428,748,008,129.16/863,356.60
  6. Step 6: Final answer
    x = 496,605.93

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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.