Home / 782,986.47-1,080,563.67-438,932.91

Finding the Fourth Proportional to 782,986.47, 1,080,563.67 and 438,932.91

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Solution

The fourth proportional to 782,986.47, 1,080,563.67 and 438,932.91 is: 605,751.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,986.47 : 1,080,563.67 = 438,932.91 : x
  2. Step 2: Convert to fraction form
    782,986.47/1,080,563.67 = 438,932.91/x
  3. Step 3: Cross multiply
    782,986.47x = 1,080,563.67 × 438,932.91
  4. Step 4: Simplify right side
    782,986.47x = 474,294,957,411.45
  5. Step 5: Solve for x
    x = 474,294,957,411.45/782,986.47
  6. Step 6: Final answer
    x = 605,751.15

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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.