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Finding the Fourth Proportional to 603,266.46, 903,521.53 and 287,944.80

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Solution

The fourth proportional to 603,266.46, 903,521.53 and 287,944.80 is: 431,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,266.46 : 903,521.53 = 287,944.80 : x
  2. Step 2: Convert to fraction form
    603,266.46/903,521.53 = 287,944.80/x
  3. Step 3: Cross multiply
    603,266.46x = 903,521.53 × 287,944.80
  4. Step 4: Simplify right side
    603,266.46x = 260,164,320,294.21
  5. Step 5: Solve for x
    x = 260,164,320,294.21/603,266.46
  6. Step 6: Final answer
    x = 431,259.38

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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.