Home / 720,081.28-1,080,108.54-214,984.72

Finding the Fourth Proportional to 720,081.28, 1,080,108.54 and 214,984.72

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Solution

The fourth proportional to 720,081.28, 1,080,108.54 and 214,984.72 is: 322,473.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,081.28 : 1,080,108.54 = 214,984.72 : x
  2. Step 2: Convert to fraction form
    720,081.28/1,080,108.54 = 214,984.72/x
  3. Step 3: Cross multiply
    720,081.28x = 1,080,108.54 × 214,984.72
  4. Step 4: Simplify right side
    720,081.28x = 232,206,832,041.51
  5. Step 5: Solve for x
    x = 232,206,832,041.51/720,081.28
  6. Step 6: Final answer
    x = 322,473.09

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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.