Home / 485,315.73-669,736.35-270,451.08

Finding the Fourth Proportional to 485,315.73, 669,736.35 and 270,451.08

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Solution

The fourth proportional to 485,315.73, 669,736.35 and 270,451.08 is: 373,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,315.73 : 669,736.35 = 270,451.08 : x
  2. Step 2: Convert to fraction form
    485,315.73/669,736.35 = 270,451.08/x
  3. Step 3: Cross multiply
    485,315.73x = 669,736.35 × 270,451.08
  4. Step 4: Simplify right side
    485,315.73x = 181,130,919,172.76
  5. Step 5: Solve for x
    x = 181,130,919,172.76/485,315.73
  6. Step 6: Final answer
    x = 373,222.85

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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.