Home / 627,033.72-865,277.58-355,103.57

Finding the Fourth Proportional to 627,033.72, 865,277.58 and 355,103.57

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Solution

The fourth proportional to 627,033.72, 865,277.58 and 355,103.57 is: 490,026.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,033.72 : 865,277.58 = 355,103.57 : x
  2. Step 2: Convert to fraction form
    627,033.72/865,277.58 = 355,103.57/x
  3. Step 3: Cross multiply
    627,033.72x = 865,277.58 × 355,103.57
  4. Step 4: Simplify right side
    627,033.72x = 307,263,161,193.79
  5. Step 5: Solve for x
    x = 307,263,161,193.79/627,033.72
  6. Step 6: Final answer
    x = 490,026.53

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1.5x scale

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.