Home / 787,428.38-1,181,330.29-254,949.57

Finding the Fourth Proportional to 787,428.38, 1,181,330.29 and 254,949.57

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Solution

The fourth proportional to 787,428.38, 1,181,330.29 and 254,949.57 is: 382,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,428.38 : 1,181,330.29 = 254,949.57 : x
  2. Step 2: Convert to fraction form
    787,428.38/1,181,330.29 = 254,949.57/x
  3. Step 3: Cross multiply
    787,428.38x = 1,181,330.29 × 254,949.57
  4. Step 4: Simplify right side
    787,428.38x = 301,179,649,463.48
  5. Step 5: Solve for x
    x = 301,179,649,463.48/787,428.38
  6. Step 6: Final answer
    x = 382,485.13

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1.5x scale

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.