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Finding the Fourth Proportional to 603,497.40, 904,209.30 and 287,273.40

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Solution

The fourth proportional to 603,497.40, 904,209.30 and 287,273.40 is: 430,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,497.40 : 904,209.30 = 287,273.40 : x
  2. Step 2: Convert to fraction form
    603,497.40/904,209.30 = 287,273.40/x
  3. Step 3: Cross multiply
    603,497.40x = 904,209.30 × 287,273.40
  4. Step 4: Simplify right side
    603,497.40x = 259,755,279,922.62
  5. Step 5: Solve for x
    x = 259,755,279,922.62/603,497.40
  6. Step 6: Final answer
    x = 430,416.57

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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.