Home / 627,017.49-865,285.66-340,531.42

Finding the Fourth Proportional to 627,017.49, 865,285.66 and 340,531.42

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Solution

The fourth proportional to 627,017.49, 865,285.66 and 340,531.42 is: 469,934.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,017.49 : 865,285.66 = 340,531.42 : x
  2. Step 2: Convert to fraction form
    627,017.49/865,285.66 = 340,531.42/x
  3. Step 3: Cross multiply
    627,017.49x = 865,285.66 × 340,531.42
  4. Step 4: Simplify right side
    627,017.49x = 294,656,954,505.44
  5. Step 5: Solve for x
    x = 294,656,954,505.44/627,017.49
  6. Step 6: Final answer
    x = 469,934.19

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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.