Home / 787,427.88-1,181,329.54-254,949.07

Finding the Fourth Proportional to 787,427.88, 1,181,329.54 and 254,949.07

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Solution

The fourth proportional to 787,427.88, 1,181,329.54 and 254,949.07 is: 382,484.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,427.88 : 1,181,329.54 = 254,949.07 : x
  2. Step 2: Convert to fraction form
    787,427.88/1,181,329.54 = 254,949.07/x
  3. Step 3: Cross multiply
    787,427.88x = 1,181,329.54 × 254,949.07
  4. Step 4: Simplify right side
    787,427.88x = 301,178,867,586.53
  5. Step 5: Solve for x
    x = 301,178,867,586.53/787,427.88
  6. Step 6: Final answer
    x = 382,484.38

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Double scale
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Similar ratio
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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.