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Finding the Fourth Proportional to 603,123.50, 903,307.44 and 287,801.84

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Solution

The fourth proportional to 603,123.50, 903,307.44 and 287,801.84 is: 431,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,123.50 : 903,307.44 = 287,801.84 : x
  2. Step 2: Convert to fraction form
    603,123.50/903,307.44 = 287,801.84/x
  3. Step 3: Cross multiply
    603,123.50x = 903,307.44 × 287,801.84
  4. Step 4: Simplify right side
    603,123.50x = 259,973,543,317.69
  5. Step 5: Solve for x
    x = 259,973,543,317.69/603,123.50
  6. Step 6: Final answer
    x = 431,045.29

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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.