Home / 719,411.20-1,079,290.56-270,136.96

Finding the Fourth Proportional to 719,411.20, 1,079,290.56 and 270,136.96

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Solution

The fourth proportional to 719,411.20, 1,079,290.56 and 270,136.96 is: 405,270.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,411.20 : 1,079,290.56 = 270,136.96 : x
  2. Step 2: Convert to fraction form
    719,411.20/1,079,290.56 = 270,136.96/x
  3. Step 3: Cross multiply
    719,411.20x = 1,079,290.56 × 270,136.96
  4. Step 4: Simplify right side
    719,411.20x = 291,556,270,835.10
  5. Step 5: Solve for x
    x = 291,556,270,835.10/719,411.20
  6. Step 6: Final answer
    x = 405,270.69

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1.5x scale

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.