Home / 1,543,387.77-2,129,490.41-890,213.49

Finding the Fourth Proportional to 1,543,387.77, 2,129,490.41 and 890,213.49

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Solution

The fourth proportional to 1,543,387.77, 2,129,490.41 and 890,213.49 is: 1,228,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,387.77 : 2,129,490.41 = 890,213.49 : x
  2. Step 2: Convert to fraction form
    1,543,387.77/2,129,490.41 = 890,213.49/x
  3. Step 3: Cross multiply
    1,543,387.77x = 2,129,490.41 × 890,213.49
  4. Step 4: Simplify right side
    1,543,387.77x = 1,895,701,085,356.56
  5. Step 5: Solve for x
    x = 1,895,701,085,356.56/1,543,387.77
  6. Step 6: Final answer
    x = 1,228,272.71

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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.