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Finding the Fourth Proportional to 603,711.20, 904,254.60 and 366,640.40

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Solution

The fourth proportional to 603,711.20, 904,254.60 and 366,640.40 is: 549,163.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,711.20 : 904,254.60 = 366,640.40 : x
  2. Step 2: Convert to fraction form
    603,711.20/904,254.60 = 366,640.40/x
  3. Step 3: Cross multiply
    603,711.20x = 904,254.60 × 366,640.40
  4. Step 4: Simplify right side
    603,711.20x = 331,536,268,245.84
  5. Step 5: Solve for x
    x = 331,536,268,245.84/603,711.20
  6. Step 6: Final answer
    x = 549,163.69

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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.