Home / 1,915,306.80-2,872,960.20-1,348,436.40

Finding the Fourth Proportional to 1,915,306.80, 2,872,960.20 and 1,348,436.40

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Solution

The fourth proportional to 1,915,306.80, 2,872,960.20 and 1,348,436.40 is: 2,022,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,306.80 : 2,872,960.20 = 1,348,436.40 : x
  2. Step 2: Convert to fraction form
    1,915,306.80/2,872,960.20 = 1,348,436.40/x
  3. Step 3: Cross multiply
    1,915,306.80x = 2,872,960.20 × 1,348,436.40
  4. Step 4: Simplify right side
    1,915,306.80x = 3,874,004,109,431.28
  5. Step 5: Solve for x
    x = 3,874,004,109,431.28/1,915,306.80
  6. Step 6: Final answer
    x = 2,022,654.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.