Home / 603,722.20-905,583.30-426,575.20

Finding the Fourth Proportional to 603,722.20, 905,583.30 and 426,575.20

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Solution

The fourth proportional to 603,722.20, 905,583.30 and 426,575.20 is: 639,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,722.20 : 905,583.30 = 426,575.20 : x
  2. Step 2: Convert to fraction form
    603,722.20/905,583.30 = 426,575.20/x
  3. Step 3: Cross multiply
    603,722.20x = 905,583.30 × 426,575.20
  4. Step 4: Simplify right side
    603,722.20x = 386,299,377,314.16
  5. Step 5: Solve for x
    x = 386,299,377,314.16/603,722.20
  6. Step 6: Final answer
    x = 639,862.80

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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.