Home / 780,775.56-1,077,351.12-441,119.88

Finding the Fourth Proportional to 780,775.56, 1,077,351.12 and 441,119.88

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Solution

The fourth proportional to 780,775.56, 1,077,351.12 and 441,119.88 is: 608,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,775.56 : 1,077,351.12 = 441,119.88 : x
  2. Step 2: Convert to fraction form
    780,775.56/1,077,351.12 = 441,119.88/x
  3. Step 3: Cross multiply
    780,775.56x = 1,077,351.12 × 441,119.88
  4. Step 4: Simplify right side
    780,775.56x = 475,240,996,772.27
  5. Step 5: Solve for x
    x = 475,240,996,772.27/780,775.56
  6. Step 6: Final answer
    x = 608,678.12

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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.