Home / 813,007.89-1,121,921.10-468,858.33

Finding the Fourth Proportional to 813,007.89, 1,121,921.10 and 468,858.33

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Solution

The fourth proportional to 813,007.89, 1,121,921.10 and 468,858.33 is: 647,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,007.89 : 1,121,921.10 = 468,858.33 : x
  2. Step 2: Convert to fraction form
    813,007.89/1,121,921.10 = 468,858.33/x
  3. Step 3: Cross multiply
    813,007.89x = 1,121,921.10 × 468,858.33
  4. Step 4: Simplify right side
    813,007.89x = 526,022,053,337.76
  5. Step 5: Solve for x
    x = 526,022,053,337.76/813,007.89
  6. Step 6: Final answer
    x = 647,007.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.