Home / 1,387,600.72-1,915,479.36-843,911.04

Finding the Fourth Proportional to 1,387,600.72, 1,915,479.36 and 843,911.04

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Solution

The fourth proportional to 1,387,600.72, 1,915,479.36 and 843,911.04 is: 1,164,956.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,600.72 : 1,915,479.36 = 843,911.04 : x
  2. Step 2: Convert to fraction form
    1,387,600.72/1,915,479.36 = 843,911.04/x
  3. Step 3: Cross multiply
    1,387,600.72x = 1,915,479.36 × 843,911.04
  4. Step 4: Simplify right side
    1,387,600.72x = 1,616,494,178,796.13
  5. Step 5: Solve for x
    x = 1,616,494,178,796.13/1,387,600.72
  6. Step 6: Final answer
    x = 1,164,956.28

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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.