Home / 780,011.12-1,170,016.69-189,035.12

Finding the Fourth Proportional to 780,011.12, 1,170,016.69 and 189,035.12

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Solution

The fourth proportional to 780,011.12, 1,170,016.69 and 189,035.12 is: 283,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,011.12 : 1,170,016.69 = 189,035.12 : x
  2. Step 2: Convert to fraction form
    780,011.12/1,170,016.69 = 189,035.12/x
  3. Step 3: Cross multiply
    780,011.12x = 1,170,016.69 × 189,035.12
  4. Step 4: Simplify right side
    780,011.12x = 221,174,245,396.15
  5. Step 5: Solve for x
    x = 221,174,245,396.15/780,011.12
  6. Step 6: Final answer
    x = 283,552.68

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Similar ratio
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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.