Home / 627,039.04-865,320.12-340,564.72

Finding the Fourth Proportional to 627,039.04, 865,320.12 and 340,564.72

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Solution

The fourth proportional to 627,039.04, 865,320.12 and 340,564.72 is: 469,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,039.04 : 865,320.12 = 340,564.72 : x
  2. Step 2: Convert to fraction form
    627,039.04/865,320.12 = 340,564.72/x
  3. Step 3: Cross multiply
    627,039.04x = 865,320.12 × 340,564.72
  4. Step 4: Simplify right side
    627,039.04x = 294,697,504,378.17
  5. Step 5: Solve for x
    x = 294,697,504,378.17/627,039.04
  6. Step 6: Final answer
    x = 469,982.71

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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.