Home / 774,262.39-1,161,555.24-390,227.08

Finding the Fourth Proportional to 774,262.39, 1,161,555.24 and 390,227.08

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Solution

The fourth proportional to 774,262.39, 1,161,555.24 and 390,227.08 is: 585,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,262.39 : 1,161,555.24 = 390,227.08 : x
  2. Step 2: Convert to fraction form
    774,262.39/1,161,555.24 = 390,227.08/x
  3. Step 3: Cross multiply
    774,262.39x = 1,161,555.24 × 390,227.08
  4. Step 4: Simplify right side
    774,262.39x = 453,270,309,563.90
  5. Step 5: Solve for x
    x = 453,270,309,563.90/774,262.39
  6. Step 6: Final answer
    x = 585,422.09

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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.