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Finding the Fourth Proportional to 603,326.88, 903,612.51 and 288,005.22

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Solution

The fourth proportional to 603,326.88, 903,612.51 and 288,005.22 is: 431,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,326.88 : 903,612.51 = 288,005.22 : x
  2. Step 2: Convert to fraction form
    603,326.88/903,612.51 = 288,005.22/x
  3. Step 3: Cross multiply
    603,326.88x = 903,612.51 × 288,005.22
  4. Step 4: Simplify right side
    603,326.88x = 260,245,119,737.30
  5. Step 5: Solve for x
    x = 260,245,119,737.30/603,326.88
  6. Step 6: Final answer
    x = 431,350.12

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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.