Home / 780,304.80-1,170,457.20-219,339.28

Finding the Fourth Proportional to 780,304.80, 1,170,457.20 and 219,339.28

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Solution

The fourth proportional to 780,304.80, 1,170,457.20 and 219,339.28 is: 329,008.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,304.80 : 1,170,457.20 = 219,339.28 : x
  2. Step 2: Convert to fraction form
    780,304.80/1,170,457.20 = 219,339.28/x
  3. Step 3: Cross multiply
    780,304.80x = 1,170,457.20 × 219,339.28
  4. Step 4: Simplify right side
    780,304.80x = 256,727,239,518.82
  5. Step 5: Solve for x
    x = 256,727,239,518.82/780,304.80
  6. Step 6: Final answer
    x = 329,008.92

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Similar ratio
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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.