Home / 720,080.28-1,080,107.04-214,983.72

Finding the Fourth Proportional to 720,080.28, 1,080,107.04 and 214,983.72

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Solution

The fourth proportional to 720,080.28, 1,080,107.04 and 214,983.72 is: 322,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,080.28 : 1,080,107.04 = 214,983.72 : x
  2. Step 2: Convert to fraction form
    720,080.28/1,080,107.04 = 214,983.72/x
  3. Step 3: Cross multiply
    720,080.28x = 1,080,107.04 × 214,983.72
  4. Step 4: Simplify right side
    720,080.28x = 232,205,429,457.39
  5. Step 5: Solve for x
    x = 232,205,429,457.39/720,080.28
  6. Step 6: Final answer
    x = 322,471.59

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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.