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Finding the Fourth Proportional to 489,125.70, 733,688.55 and 347,408.10

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Solution

The fourth proportional to 489,125.70, 733,688.55 and 347,408.10 is: 521,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,125.70 : 733,688.55 = 347,408.10 : x
  2. Step 2: Convert to fraction form
    489,125.70/733,688.55 = 347,408.10/x
  3. Step 3: Cross multiply
    489,125.70x = 733,688.55 × 347,408.10
  4. Step 4: Simplify right side
    489,125.70x = 254,889,345,147.26
  5. Step 5: Solve for x
    x = 254,889,345,147.26/489,125.70
  6. Step 6: Final answer
    x = 521,112.15

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1.5x scale

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.