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Finding the Fourth Proportional to 603,850.20, 904,997.70 and 287,626.20

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Solution

The fourth proportional to 603,850.20, 904,997.70 and 287,626.20 is: 431,068.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,850.20 : 904,997.70 = 287,626.20 : x
  2. Step 2: Convert to fraction form
    603,850.20/904,997.70 = 287,626.20/x
  3. Step 3: Cross multiply
    603,850.20x = 904,997.70 × 287,626.20
  4. Step 4: Simplify right side
    603,850.20x = 260,301,049,459.74
  5. Step 5: Solve for x
    x = 260,301,049,459.74/603,850.20
  6. Step 6: Final answer
    x = 431,068.91

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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.