Home / 780,679.04-1,170,220.44-443,006.24

Finding the Fourth Proportional to 780,679.04, 1,170,220.44 and 443,006.24

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Solution

The fourth proportional to 780,679.04, 1,170,220.44 and 443,006.24 is: 664,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,679.04 : 1,170,220.44 = 443,006.24 : x
  2. Step 2: Convert to fraction form
    780,679.04/1,170,220.44 = 443,006.24/x
  3. Step 3: Cross multiply
    780,679.04x = 1,170,220.44 × 443,006.24
  4. Step 4: Simplify right side
    780,679.04x = 518,414,957,095.55
  5. Step 5: Solve for x
    x = 518,414,957,095.55/780,679.04
  6. Step 6: Final answer
    x = 664,056.46

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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.