Home / 780,311.12-1,170,466.65-219,345.62

Finding the Fourth Proportional to 780,311.12, 1,170,466.65 and 219,345.62

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Solution

The fourth proportional to 780,311.12, 1,170,466.65 and 219,345.62 is: 329,018.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,311.12 : 1,170,466.65 = 219,345.62 : x
  2. Step 2: Convert to fraction form
    780,311.12/1,170,466.65 = 219,345.62/x
  3. Step 3: Cross multiply
    780,311.12x = 1,170,466.65 × 219,345.62
  4. Step 4: Simplify right side
    780,311.12x = 256,736,727,181.24
  5. Step 5: Solve for x
    x = 256,736,727,181.24/780,311.12
  6. Step 6: Final answer
    x = 329,018.42

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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.