Home / 454,449.40-681,674.10-302,890.30

Finding the Fourth Proportional to 454,449.40, 681,674.10 and 302,890.30

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Solution

The fourth proportional to 454,449.40, 681,674.10 and 302,890.30 is: 454,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,449.40 : 681,674.10 = 302,890.30 : x
  2. Step 2: Convert to fraction form
    454,449.40/681,674.10 = 302,890.30/x
  3. Step 3: Cross multiply
    454,449.40x = 681,674.10 × 302,890.30
  4. Step 4: Simplify right side
    454,449.40x = 206,472,472,651.23
  5. Step 5: Solve for x
    x = 206,472,472,651.23/454,449.40
  6. Step 6: Final answer
    x = 454,335.45

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Double scale
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Similar ratio
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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.