Home / 772,642.20-1,158,963.30-729,339.60

Finding the Fourth Proportional to 772,642.20, 1,158,963.30 and 729,339.60

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Solution

The fourth proportional to 772,642.20, 1,158,963.30 and 729,339.60 is: 1,094,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,642.20 : 1,158,963.30 = 729,339.60 : x
  2. Step 2: Convert to fraction form
    772,642.20/1,158,963.30 = 729,339.60/x
  3. Step 3: Cross multiply
    772,642.20x = 1,158,963.30 × 729,339.60
  4. Step 4: Simplify right side
    772,642.20x = 845,277,829,636.68
  5. Step 5: Solve for x
    x = 845,277,829,636.68/772,642.20
  6. Step 6: Final answer
    x = 1,094,009.40

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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.