Home / 780,059.20-1,170,088.80-189,083.20

Finding the Fourth Proportional to 780,059.20, 1,170,088.80 and 189,083.20

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Solution

The fourth proportional to 780,059.20, 1,170,088.80 and 189,083.20 is: 283,624.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,059.20 : 1,170,088.80 = 189,083.20 : x
  2. Step 2: Convert to fraction form
    780,059.20/1,170,088.80 = 189,083.20/x
  3. Step 3: Cross multiply
    780,059.20x = 1,170,088.80 × 189,083.20
  4. Step 4: Simplify right side
    780,059.20x = 221,244,134,588.16
  5. Step 5: Solve for x
    x = 221,244,134,588.16/780,059.20
  6. Step 6: Final answer
    x = 283,624.80

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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.