Home / 627,029.12-865,320.62-355,091.16

Finding the Fourth Proportional to 627,029.12, 865,320.62 and 355,091.16

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Solution

The fourth proportional to 627,029.12, 865,320.62 and 355,091.16 is: 490,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,029.12 : 865,320.62 = 355,091.16 : x
  2. Step 2: Convert to fraction form
    627,029.12/865,320.62 = 355,091.16/x
  3. Step 3: Cross multiply
    627,029.12x = 865,320.62 × 355,091.16
  4. Step 4: Simplify right side
    627,029.12x = 307,267,700,952.26
  5. Step 5: Solve for x
    x = 307,267,700,952.26/627,029.12
  6. Step 6: Final answer
    x = 490,037.37

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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.