Home / 772,702.40-1,159,629.60-398,532.80

Finding the Fourth Proportional to 772,702.40, 1,159,629.60 and 398,532.80

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Solution

The fourth proportional to 772,702.40, 1,159,629.60 and 398,532.80 is: 598,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,702.40 : 1,159,629.60 = 398,532.80 : x
  2. Step 2: Convert to fraction form
    772,702.40/1,159,629.60 = 398,532.80/x
  3. Step 3: Cross multiply
    772,702.40x = 1,159,629.60 × 398,532.80
  4. Step 4: Simplify right side
    772,702.40x = 462,150,431,450.88
  5. Step 5: Solve for x
    x = 462,150,431,450.88/772,702.40
  6. Step 6: Final answer
    x = 598,096.28

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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.