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Finding the Fourth Proportional to 454,048.65, 681,073.83 and 426,303.69

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Solution

The fourth proportional to 454,048.65, 681,073.83 and 426,303.69 is: 639,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,048.65 : 681,073.83 = 426,303.69 : x
  2. Step 2: Convert to fraction form
    454,048.65/681,073.83 = 426,303.69/x
  3. Step 3: Cross multiply
    454,048.65x = 681,073.83 × 426,303.69
  4. Step 4: Simplify right side
    454,048.65x = 290,344,286,891.43
  5. Step 5: Solve for x
    x = 290,344,286,891.43/454,048.65
  6. Step 6: Final answer
    x = 639,456.34

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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.