Home / 740,861.20-1,111,810.20-320,438.80

Finding the Fourth Proportional to 740,861.20, 1,111,810.20 and 320,438.80

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Solution

The fourth proportional to 740,861.20, 1,111,810.20 and 320,438.80 is: 480,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,861.20 : 1,111,810.20 = 320,438.80 : x
  2. Step 2: Convert to fraction form
    740,861.20/1,111,810.20 = 320,438.80/x
  3. Step 3: Cross multiply
    740,861.20x = 1,111,810.20 × 320,438.80
  4. Step 4: Simplify right side
    740,861.20x = 356,267,126,315.76
  5. Step 5: Solve for x
    x = 356,267,126,315.76/740,861.20
  6. Step 6: Final answer
    x = 480,882.42

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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.