Home / 1,215,154.80-1,820,107.80-1,057,690.80

Finding the Fourth Proportional to 1,215,154.80, 1,820,107.80 and 1,057,690.80

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Solution

The fourth proportional to 1,215,154.80, 1,820,107.80 and 1,057,690.80 is: 1,584,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,154.80 : 1,820,107.80 = 1,057,690.80 : x
  2. Step 2: Convert to fraction form
    1,215,154.80/1,820,107.80 = 1,057,690.80/x
  3. Step 3: Cross multiply
    1,215,154.80x = 1,820,107.80 × 1,057,690.80
  4. Step 4: Simplify right side
    1,215,154.80x = 1,925,111,275,068.24
  5. Step 5: Solve for x
    x = 1,925,111,275,068.24/1,215,154.80
  6. Step 6: Final answer
    x = 1,584,251.88

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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.