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Finding the Fourth Proportional to 603,164.48, 903,368.30 and 287,842.82

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Solution

The fourth proportional to 603,164.48, 903,368.30 and 287,842.82 is: 431,106.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,164.48 : 903,368.30 = 287,842.82 : x
  2. Step 2: Convert to fraction form
    603,164.48/903,368.30 = 287,842.82/x
  3. Step 3: Cross multiply
    603,164.48x = 903,368.30 × 287,842.82
  4. Step 4: Simplify right side
    603,164.48x = 260,028,073,014.55
  5. Step 5: Solve for x
    x = 260,028,073,014.55/603,164.48
  6. Step 6: Final answer
    x = 431,106.41

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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.