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Finding the Fourth Proportional to 442,910.40, 663,674.40 and 383,467.20

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Solution

The fourth proportional to 442,910.40, 663,674.40 and 383,467.20 is: 574,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,910.40 : 663,674.40 = 383,467.20 : x
  2. Step 2: Convert to fraction form
    442,910.40/663,674.40 = 383,467.20/x
  3. Step 3: Cross multiply
    442,910.40x = 663,674.40 × 383,467.20
  4. Step 4: Simplify right side
    442,910.40x = 254,497,363,879.68
  5. Step 5: Solve for x
    x = 254,497,363,879.68/442,910.40
  6. Step 6: Final answer
    x = 574,602.37

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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.