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Finding the Fourth Proportional to 603,323.38, 903,607.26 and 288,001.72

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Solution

The fourth proportional to 603,323.38, 903,607.26 and 288,001.72 is: 431,344.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,323.38 : 903,607.26 = 288,001.72 : x
  2. Step 2: Convert to fraction form
    603,323.38/903,607.26 = 288,001.72/x
  3. Step 3: Cross multiply
    603,323.38x = 903,607.26 × 288,001.72
  4. Step 4: Simplify right side
    603,323.38x = 260,240,445,084.49
  5. Step 5: Solve for x
    x = 260,240,445,084.49/603,323.38
  6. Step 6: Final answer
    x = 431,344.87

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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.