Home / 787,428.13-1,181,329.92-254,949.32

Finding the Fourth Proportional to 787,428.13, 1,181,329.92 and 254,949.32

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Solution

The fourth proportional to 787,428.13, 1,181,329.92 and 254,949.32 is: 382,484.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,428.13 : 1,181,329.92 = 254,949.32 : x
  2. Step 2: Convert to fraction form
    787,428.13/1,181,329.92 = 254,949.32/x
  3. Step 3: Cross multiply
    787,428.13x = 1,181,329.92 × 254,949.32
  4. Step 4: Simplify right side
    787,428.13x = 301,179,252,618.26
  5. Step 5: Solve for x
    x = 301,179,252,618.26/787,428.13
  6. Step 6: Final answer
    x = 382,484.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.