Home / 528,085.20-792,120.60-173,110.80

Finding the Fourth Proportional to 528,085.20, 792,120.60 and 173,110.80

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Solution

The fourth proportional to 528,085.20, 792,120.60 and 173,110.80 is: 259,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,085.20 : 792,120.60 = 173,110.80 : x
  2. Step 2: Convert to fraction form
    528,085.20/792,120.60 = 173,110.80/x
  3. Step 3: Cross multiply
    528,085.20x = 792,120.60 × 173,110.80
  4. Step 4: Simplify right side
    528,085.20x = 137,124,630,762.48
  5. Step 5: Solve for x
    x = 137,124,630,762.48/528,085.20
  6. Step 6: Final answer
    x = 259,663.84

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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.