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Finding the Fourth Proportional to 540,120.80, 809,014.80 and 470,136.80

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Solution

The fourth proportional to 540,120.80, 809,014.80 and 470,136.80 is: 704,189.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,120.80 : 809,014.80 = 470,136.80 : x
  2. Step 2: Convert to fraction form
    540,120.80/809,014.80 = 470,136.80/x
  3. Step 3: Cross multiply
    540,120.80x = 809,014.80 × 470,136.80
  4. Step 4: Simplify right side
    540,120.80x = 380,347,629,224.64
  5. Step 5: Solve for x
    x = 380,347,629,224.64/540,120.80
  6. Step 6: Final answer
    x = 704,189.93

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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.