Home / 1,423,046.56-1,963,910.79-811,213.87

Finding the Fourth Proportional to 1,423,046.56, 1,963,910.79 and 811,213.87

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Solution

The fourth proportional to 1,423,046.56, 1,963,910.79 and 811,213.87 is: 1,119,535.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,046.56 : 1,963,910.79 = 811,213.87 : x
  2. Step 2: Convert to fraction form
    1,423,046.56/1,963,910.79 = 811,213.87/x
  3. Step 3: Cross multiply
    1,423,046.56x = 1,963,910.79 × 811,213.87
  4. Step 4: Simplify right side
    1,423,046.56x = 1,593,151,672,290.66
  5. Step 5: Solve for x
    x = 1,593,151,672,290.66/1,423,046.56
  6. Step 6: Final answer
    x = 1,119,535.87

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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.