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Finding the Fourth Proportional to 540,118.80, 809,011.80 and 470,134.80

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Solution

The fourth proportional to 540,118.80, 809,011.80 and 470,134.80 is: 704,186.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,118.80 : 809,011.80 = 470,134.80 : x
  2. Step 2: Convert to fraction form
    540,118.80/809,011.80 = 470,134.80/x
  3. Step 3: Cross multiply
    540,118.80x = 809,011.80 × 470,134.80
  4. Step 4: Simplify right side
    540,118.80x = 380,344,600,790.64
  5. Step 5: Solve for x
    x = 380,344,600,790.64/540,118.80
  6. Step 6: Final answer
    x = 704,186.93

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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.