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Finding the Fourth Proportional to 603,381.60, 904,805.10 and 203,913.90

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Solution

The fourth proportional to 603,381.60, 904,805.10 and 203,913.90 is: 305,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,381.60 : 904,805.10 = 203,913.90 : x
  2. Step 2: Convert to fraction form
    603,381.60/904,805.10 = 203,913.90/x
  3. Step 3: Cross multiply
    603,381.60x = 904,805.10 × 203,913.90
  4. Step 4: Simplify right side
    603,381.60x = 184,502,336,680.89
  5. Step 5: Solve for x
    x = 184,502,336,680.89/603,381.60
  6. Step 6: Final answer
    x = 305,780.52

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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.