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Finding the Fourth Proportional to 601,989.84, 830,755.32 and 330,082.56

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Solution

The fourth proportional to 601,989.84, 830,755.32 and 330,082.56 is: 455,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,989.84 : 830,755.32 = 330,082.56 : x
  2. Step 2: Convert to fraction form
    601,989.84/830,755.32 = 330,082.56/x
  3. Step 3: Cross multiply
    601,989.84x = 830,755.32 × 330,082.56
  4. Step 4: Simplify right side
    601,989.84x = 274,217,842,759.22
  5. Step 5: Solve for x
    x = 274,217,842,759.22/601,989.84
  6. Step 6: Final answer
    x = 455,519.05

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.