Home / 1,553,387.85-2,143,724.04-855,719.28

Finding the Fourth Proportional to 1,553,387.85, 2,143,724.04 and 855,719.28

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Solution

The fourth proportional to 1,553,387.85, 2,143,724.04 and 855,719.28 is: 1,180,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,387.85 : 2,143,724.04 = 855,719.28 : x
  2. Step 2: Convert to fraction form
    1,553,387.85/2,143,724.04 = 855,719.28/x
  3. Step 3: Cross multiply
    1,553,387.85x = 2,143,724.04 × 855,719.28
  4. Step 4: Simplify right side
    1,553,387.85x = 1,834,425,992,027.49
  5. Step 5: Solve for x
    x = 1,834,425,992,027.49/1,553,387.85
  6. Step 6: Final answer
    x = 1,180,919.49

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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.