Home / 1,491,823.72-2,058,756.78-812,803.96

Finding the Fourth Proportional to 1,491,823.72, 2,058,756.78 and 812,803.96

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Solution

The fourth proportional to 1,491,823.72, 2,058,756.78 and 812,803.96 is: 1,121,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,823.72 : 2,058,756.78 = 812,803.96 : x
  2. Step 2: Convert to fraction form
    1,491,823.72/2,058,756.78 = 812,803.96/x
  3. Step 3: Cross multiply
    1,491,823.72x = 2,058,756.78 × 812,803.96
  4. Step 4: Simplify right side
    1,491,823.72x = 1,673,365,663,460.85
  5. Step 5: Solve for x
    x = 1,673,365,663,460.85/1,491,823.72
  6. Step 6: Final answer
    x = 1,121,691.28

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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.