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Finding the Fourth Proportional to 528,424.50, 792,470.25 and 173,355.78

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Solution

The fourth proportional to 528,424.50, 792,470.25 and 173,355.78 is: 259,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,424.50 : 792,470.25 = 173,355.78 : x
  2. Step 2: Convert to fraction form
    528,424.50/792,470.25 = 173,355.78/x
  3. Step 3: Cross multiply
    528,424.50x = 792,470.25 × 173,355.78
  4. Step 4: Simplify right side
    528,424.50x = 137,379,298,315.55
  5. Step 5: Solve for x
    x = 137,379,298,315.55/528,424.50
  6. Step 6: Final answer
    x = 259,979.05

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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.