Home / 779,940.80-1,170,081.30-443,142.80

Finding the Fourth Proportional to 779,940.80, 1,170,081.30 and 443,142.80

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Solution

The fourth proportional to 779,940.80, 1,170,081.30 and 443,142.80 is: 664,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,940.80 : 1,170,081.30 = 443,142.80 : x
  2. Step 2: Convert to fraction form
    779,940.80/1,170,081.30 = 443,142.80/x
  3. Step 3: Cross multiply
    779,940.80x = 1,170,081.30 × 443,142.80
  4. Step 4: Simplify right side
    779,940.80x = 518,513,103,509.64
  5. Step 5: Solve for x
    x = 518,513,103,509.64/779,940.80
  6. Step 6: Final answer
    x = 664,810.85

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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.