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Finding the Fourth Proportional to 534,410.40, 800,578.80 and 297,328.80

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Solution

The fourth proportional to 534,410.40, 800,578.80 and 297,328.80 is: 445,416.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,410.40 : 800,578.80 = 297,328.80 : x
  2. Step 2: Convert to fraction form
    534,410.40/800,578.80 = 297,328.80/x
  3. Step 3: Cross multiply
    534,410.40x = 800,578.80 × 297,328.80
  4. Step 4: Simplify right side
    534,410.40x = 238,035,133,909.44
  5. Step 5: Solve for x
    x = 238,035,133,909.44/534,410.40
  6. Step 6: Final answer
    x = 445,416.36

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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.