Home / 766,573.20-1,149,859.80-761,324.40

Finding the Fourth Proportional to 766,573.20, 1,149,859.80 and 761,324.40

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Solution

The fourth proportional to 766,573.20, 1,149,859.80 and 761,324.40 is: 1,141,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,573.20 : 1,149,859.80 = 761,324.40 : x
  2. Step 2: Convert to fraction form
    766,573.20/1,149,859.80 = 761,324.40/x
  3. Step 3: Cross multiply
    766,573.20x = 1,149,859.80 × 761,324.40
  4. Step 4: Simplify right side
    766,573.20x = 875,416,322,319.12
  5. Step 5: Solve for x
    x = 875,416,322,319.12/766,573.20
  6. Step 6: Final answer
    x = 1,141,986.60

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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.