Home / 627,318.50-865,707.40-340,843.38

Finding the Fourth Proportional to 627,318.50, 865,707.40 and 340,843.38

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Solution

The fourth proportional to 627,318.50, 865,707.40 and 340,843.38 is: 470,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,318.50 : 865,707.40 = 340,843.38 : x
  2. Step 2: Convert to fraction form
    627,318.50/865,707.40 = 340,843.38/x
  3. Step 3: Cross multiply
    627,318.50x = 865,707.40 × 340,843.38
  4. Step 4: Simplify right side
    627,318.50x = 295,070,636,307.01
  5. Step 5: Solve for x
    x = 295,070,636,307.01/627,318.50
  6. Step 6: Final answer
    x = 470,368.14

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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.