Home / 680,729.02-1,022,836.29-513,821.28

Finding the Fourth Proportional to 680,729.02, 1,022,836.29 and 513,821.28

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Solution

The fourth proportional to 680,729.02, 1,022,836.29 and 513,821.28 is: 772,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,729.02 : 1,022,836.29 = 513,821.28 : x
  2. Step 2: Convert to fraction form
    680,729.02/1,022,836.29 = 513,821.28/x
  3. Step 3: Cross multiply
    680,729.02x = 1,022,836.29 × 513,821.28
  4. Step 4: Simplify right side
    680,729.02x = 525,555,046,644.07
  5. Step 5: Solve for x
    x = 525,555,046,644.07/680,729.02
  6. Step 6: Final answer
    x = 772,047.37

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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.