Home / 627,238.11-865,606.34-355,305.94

Finding the Fourth Proportional to 627,238.11, 865,606.34 and 355,305.94

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Solution

The fourth proportional to 627,238.11, 865,606.34 and 355,305.94 is: 490,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,238.11 : 865,606.34 = 355,305.94 : x
  2. Step 2: Convert to fraction form
    627,238.11/865,606.34 = 355,305.94/x
  3. Step 3: Cross multiply
    627,238.11x = 865,606.34 × 355,305.94
  4. Step 4: Simplify right side
    627,238.11x = 307,555,074,303.66
  5. Step 5: Solve for x
    x = 307,555,074,303.66/627,238.11
  6. Step 6: Final answer
    x = 490,332.25

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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.