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Finding the Fourth Proportional to 601,991.84, 830,758.08 and 330,084.56

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Solution

The fourth proportional to 601,991.84, 830,758.08 and 330,084.56 is: 455,521.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,991.84 : 830,758.08 = 330,084.56 : x
  2. Step 2: Convert to fraction form
    601,991.84/830,758.08 = 330,084.56/x
  3. Step 3: Cross multiply
    601,991.84x = 830,758.08 × 330,084.56
  4. Step 4: Simplify right side
    601,991.84x = 274,220,415,303.25
  5. Step 5: Solve for x
    x = 274,220,415,303.25/601,991.84
  6. Step 6: Final answer
    x = 455,521.81

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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.