Home / 485,244.72-669,628.69-270,380.21

Finding the Fourth Proportional to 485,244.72, 669,628.69 and 270,380.21

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Solution

The fourth proportional to 485,244.72, 669,628.69 and 270,380.21 is: 373,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,244.72 : 669,628.69 = 270,380.21 : x
  2. Step 2: Convert to fraction form
    485,244.72/669,628.69 = 270,380.21/x
  3. Step 3: Cross multiply
    485,244.72x = 669,628.69 × 270,380.21
  4. Step 4: Simplify right side
    485,244.72x = 181,054,345,824.23
  5. Step 5: Solve for x
    x = 181,054,345,824.23/485,244.72
  6. Step 6: Final answer
    x = 373,119.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.