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Finding the Fourth Proportional to 450,446.94, 621,574.46 and 304,956.77

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Solution

The fourth proportional to 450,446.94, 621,574.46 and 304,956.77 is: 420,811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,446.94 : 621,574.46 = 304,956.77 : x
  2. Step 2: Convert to fraction form
    450,446.94/621,574.46 = 304,956.77/x
  3. Step 3: Cross multiply
    450,446.94x = 621,574.46 × 304,956.77
  4. Step 4: Simplify right side
    450,446.94x = 189,553,336,147.03
  5. Step 5: Solve for x
    x = 189,553,336,147.03/450,446.94
  6. Step 6: Final answer
    x = 420,811.69

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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.