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Finding the Fourth Proportional to 603,797.80, 904,659.90 and 393,327.40

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Solution

The fourth proportional to 603,797.80, 904,659.90 and 393,327.40 is: 589,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,797.80 : 904,659.90 = 393,327.40 : x
  2. Step 2: Convert to fraction form
    603,797.80/904,659.90 = 393,327.40/x
  3. Step 3: Cross multiply
    603,797.80x = 904,659.90 × 393,327.40
  4. Step 4: Simplify right side
    603,797.80x = 355,827,526,351.26
  5. Step 5: Solve for x
    x = 355,827,526,351.26/603,797.80
  6. Step 6: Final answer
    x = 589,315.71

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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.