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Finding the Fourth Proportional to 579,552.86, 799,771.03 and 321,388.15

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Solution

The fourth proportional to 579,552.86, 799,771.03 and 321,388.15 is: 443,509.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,552.86 : 799,771.03 = 321,388.15 : x
  2. Step 2: Convert to fraction form
    579,552.86/799,771.03 = 321,388.15/x
  3. Step 3: Cross multiply
    579,552.86x = 799,771.03 × 321,388.15
  4. Step 4: Simplify right side
    579,552.86x = 257,036,931,755.30
  5. Step 5: Solve for x
    x = 257,036,931,755.30/579,552.86
  6. Step 6: Final answer
    x = 443,509.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.