Home / 782,991.48-1,080,570.56-438,937.92

Finding the Fourth Proportional to 782,991.48, 1,080,570.56 and 438,937.92

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Solution

The fourth proportional to 782,991.48, 1,080,570.56 and 438,937.92 is: 605,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,991.48 : 1,080,570.56 = 438,937.92 : x
  2. Step 2: Convert to fraction form
    782,991.48/1,080,570.56 = 438,937.92/x
  3. Step 3: Cross multiply
    782,991.48x = 1,080,570.56 × 438,937.92
  4. Step 4: Simplify right side
    782,991.48x = 474,303,394,019.64
  5. Step 5: Solve for x
    x = 474,303,394,019.64/782,991.48
  6. Step 6: Final answer
    x = 605,758.05

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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.