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Finding the Fourth Proportional to 629,549.70, 943,974.60 and 255,135.30

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Solution

The fourth proportional to 629,549.70, 943,974.60 and 255,135.30 is: 382,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,549.70 : 943,974.60 = 255,135.30 : x
  2. Step 2: Convert to fraction form
    629,549.70/943,974.60 = 255,135.30/x
  3. Step 3: Cross multiply
    629,549.70x = 943,974.60 × 255,135.30
  4. Step 4: Simplify right side
    629,549.70x = 240,841,242,763.38
  5. Step 5: Solve for x
    x = 240,841,242,763.38/629,549.70
  6. Step 6: Final answer
    x = 382,561.13

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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.