Home / 780,350.82-1,170,526.32-219,385.32

Finding the Fourth Proportional to 780,350.82, 1,170,526.32 and 219,385.32

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Solution

The fourth proportional to 780,350.82, 1,170,526.32 and 219,385.32 is: 329,078.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,350.82 : 1,170,526.32 = 219,385.32 : x
  2. Step 2: Convert to fraction form
    780,350.82/1,170,526.32 = 219,385.32/x
  3. Step 3: Cross multiply
    780,350.82x = 1,170,526.32 × 219,385.32
  4. Step 4: Simplify right side
    780,350.82x = 256,796,291,281.62
  5. Step 5: Solve for x
    x = 256,796,291,281.62/780,350.82
  6. Step 6: Final answer
    x = 329,078.01

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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.