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Finding the Fourth Proportional to 629,945.90, 944,918.85 and 256,237.10

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Solution

The fourth proportional to 629,945.90, 944,918.85 and 256,237.10 is: 384,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,945.90 : 944,918.85 = 256,237.10 : x
  2. Step 2: Convert to fraction form
    629,945.90/944,918.85 = 256,237.10/x
  3. Step 3: Cross multiply
    629,945.90x = 944,918.85 × 256,237.10
  4. Step 4: Simplify right side
    629,945.90x = 242,123,265,859.34
  5. Step 5: Solve for x
    x = 242,123,265,859.34/629,945.90
  6. Step 6: Final answer
    x = 384,355.65

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Half scale
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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.