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Finding the Fourth Proportional to 601,960.70, 830,705.55 and 330,022.78

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Solution

The fourth proportional to 601,960.70, 830,705.55 and 330,022.78 is: 455,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,960.70 : 830,705.55 = 330,022.78 : x
  2. Step 2: Convert to fraction form
    601,960.70/830,705.55 = 330,022.78/x
  3. Step 3: Cross multiply
    601,960.70x = 830,705.55 × 330,022.78
  4. Step 4: Simplify right side
    601,960.70x = 274,151,754,972.43
  5. Step 5: Solve for x
    x = 274,151,754,972.43/601,960.70
  6. Step 6: Final answer
    x = 455,431.32

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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.