Home / 780,298.77-1,170,448.17-219,333.27

Finding the Fourth Proportional to 780,298.77, 1,170,448.17 and 219,333.27

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Solution

The fourth proportional to 780,298.77, 1,170,448.17 and 219,333.27 is: 328,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,298.77 : 1,170,448.17 = 219,333.27 : x
  2. Step 2: Convert to fraction form
    780,298.77/1,170,448.17 = 219,333.27/x
  3. Step 3: Cross multiply
    780,298.77x = 1,170,448.17 × 219,333.27
  4. Step 4: Simplify right side
    780,298.77x = 256,718,224,491.62
  5. Step 5: Solve for x
    x = 256,718,224,491.62/780,298.77
  6. Step 6: Final answer
    x = 328,999.91

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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.