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Finding the Fourth Proportional to 404,853.10, 607,279.65 and 255,553.90

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Solution

The fourth proportional to 404,853.10, 607,279.65 and 255,553.90 is: 383,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,853.10 : 607,279.65 = 255,553.90 : x
  2. Step 2: Convert to fraction form
    404,853.10/607,279.65 = 255,553.90/x
  3. Step 3: Cross multiply
    404,853.10x = 607,279.65 × 255,553.90
  4. Step 4: Simplify right side
    404,853.10x = 155,192,682,948.14
  5. Step 5: Solve for x
    x = 155,192,682,948.14/404,853.10
  6. Step 6: Final answer
    x = 383,330.85

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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.