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Finding the Fourth Proportional to 603,287.55, 904,930.47 and 154,008.42

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Solution

The fourth proportional to 603,287.55, 904,930.47 and 154,008.42 is: 231,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,287.55 : 904,930.47 = 154,008.42 : x
  2. Step 2: Convert to fraction form
    603,287.55/904,930.47 = 154,008.42/x
  3. Step 3: Cross multiply
    603,287.55x = 904,930.47 × 154,008.42
  4. Step 4: Simplify right side
    603,287.55x = 139,366,911,894.56
  5. Step 5: Solve for x
    x = 139,366,911,894.56/603,287.55
  6. Step 6: Final answer
    x = 231,012.41

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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.