Home / 813,876.08-1,123,162.44-451,315.28

Finding the Fourth Proportional to 813,876.08, 1,123,162.44 and 451,315.28

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Solution

The fourth proportional to 813,876.08, 1,123,162.44 and 451,315.28 is: 622,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,876.08 : 1,123,162.44 = 451,315.28 : x
  2. Step 2: Convert to fraction form
    813,876.08/1,123,162.44 = 451,315.28/x
  3. Step 3: Cross multiply
    813,876.08x = 1,123,162.44 × 451,315.28
  4. Step 4: Simplify right side
    813,876.08x = 506,900,371,094.08
  5. Step 5: Solve for x
    x = 506,900,371,094.08/813,876.08
  6. Step 6: Final answer
    x = 622,822.54

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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.