Home / 787,662.16-1,086,830.40-443,444.56

Finding the Fourth Proportional to 787,662.16, 1,086,830.40 and 443,444.56

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Solution

The fourth proportional to 787,662.16, 1,086,830.40 and 443,444.56 is: 611,872.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,662.16 : 1,086,830.40 = 443,444.56 : x
  2. Step 2: Convert to fraction form
    787,662.16/1,086,830.40 = 443,444.56/x
  3. Step 3: Cross multiply
    787,662.16x = 1,086,830.40 × 443,444.56
  4. Step 4: Simplify right side
    787,662.16x = 481,949,028,522.62
  5. Step 5: Solve for x
    x = 481,949,028,522.62/787,662.16
  6. Step 6: Final answer
    x = 611,872.77

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Double scale
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1.5x scale

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.