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Finding the Fourth Proportional to 630,411.36, 945,792 and 350,125.44

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Solution

The fourth proportional to 630,411.36, 945,792 and 350,125.44 is: 525,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,411.36 : 945,792 = 350,125.44 : x
  2. Step 2: Convert to fraction form
    630,411.36/945,792 = 350,125.44/x
  3. Step 3: Cross multiply
    630,411.36x = 945,792 × 350,125.44
  4. Step 4: Simplify right side
    630,411.36x = 331,145,840,148.48
  5. Step 5: Solve for x
    x = 331,145,840,148.48/630,411.36
  6. Step 6: Final answer
    x = 525,285.33

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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.