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Finding the Fourth Proportional to 450,446.52, 621,573.88 and 304,956.34

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Solution

The fourth proportional to 450,446.52, 621,573.88 and 304,956.34 is: 420,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,446.52 : 621,573.88 = 304,956.34 : x
  2. Step 2: Convert to fraction form
    450,446.52/621,573.88 = 304,956.34/x
  3. Step 3: Cross multiply
    450,446.52x = 621,573.88 × 304,956.34
  4. Step 4: Simplify right side
    450,446.52x = 189,552,896,378.53
  5. Step 5: Solve for x
    x = 189,552,896,378.53/450,446.52
  6. Step 6: Final answer
    x = 420,811.10

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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.