Home / 627,209.89-865,550.68-340,730.21

Finding the Fourth Proportional to 627,209.89, 865,550.68 and 340,730.21

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Solution

The fourth proportional to 627,209.89, 865,550.68 and 340,730.21 is: 470,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,209.89 : 865,550.68 = 340,730.21 : x
  2. Step 2: Convert to fraction form
    627,209.89/865,550.68 = 340,730.21/x
  3. Step 3: Cross multiply
    627,209.89x = 865,550.68 × 340,730.21
  4. Step 4: Simplify right side
    627,209.89x = 294,919,266,274.09
  5. Step 5: Solve for x
    x = 294,919,266,274.09/627,209.89
  6. Step 6: Final answer
    x = 470,208.25

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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.