Home / 964,912.88-1,331,739.20-535,331.40

Finding the Fourth Proportional to 964,912.88, 1,331,739.20 and 535,331.40

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Solution

The fourth proportional to 964,912.88, 1,331,739.20 and 535,331.40 is: 738,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,912.88 : 1,331,739.20 = 535,331.40 : x
  2. Step 2: Convert to fraction form
    964,912.88/1,331,739.20 = 535,331.40/x
  3. Step 3: Cross multiply
    964,912.88x = 1,331,739.20 × 535,331.40
  4. Step 4: Simplify right side
    964,912.88x = 712,921,810,370.88
  5. Step 5: Solve for x
    x = 712,921,810,370.88/964,912.88
  6. Step 6: Final answer
    x = 738,845.78

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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.