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Finding the Fourth Proportional to 601,958.70, 830,702.79 and 330,020.78

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Solution

The fourth proportional to 601,958.70, 830,702.79 and 330,020.78 is: 455,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,958.70 : 830,702.79 = 330,020.78 : x
  2. Step 2: Convert to fraction form
    601,958.70/830,702.79 = 330,020.78/x
  3. Step 3: Cross multiply
    601,958.70x = 830,702.79 × 330,020.78
  4. Step 4: Simplify right side
    601,958.70x = 274,149,178,550.46
  5. Step 5: Solve for x
    x = 274,149,178,550.46/601,958.70
  6. Step 6: Final answer
    x = 455,428.55

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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.