Home / 485,827.74-669,933.59-418,074.48

Finding the Fourth Proportional to 485,827.74, 669,933.59 and 418,074.48

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Solution

The fourth proportional to 485,827.74, 669,933.59 and 418,074.48 is: 576,505.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,827.74 : 669,933.59 = 418,074.48 : x
  2. Step 2: Convert to fraction form
    485,827.74/669,933.59 = 418,074.48/x
  3. Step 3: Cross multiply
    485,827.74x = 669,933.59 × 418,074.48
  4. Step 4: Simplify right side
    485,827.74x = 280,082,135,183.41
  5. Step 5: Solve for x
    x = 280,082,135,183.41/485,827.74
  6. Step 6: Final answer
    x = 576,505.03

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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.