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Finding the Fourth Proportional to 601,991.56, 830,743.95 and 330,054.97

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Solution

The fourth proportional to 601,991.56, 830,743.95 and 330,054.97 is: 455,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,991.56 : 830,743.95 = 330,054.97 : x
  2. Step 2: Convert to fraction form
    601,991.56/830,743.95 = 330,054.97/x
  3. Step 3: Cross multiply
    601,991.56x = 830,743.95 × 330,054.97
  4. Step 4: Simplify right side
    601,991.56x = 274,191,167,844.66
  5. Step 5: Solve for x
    x = 274,191,167,844.66/601,991.56
  6. Step 6: Final answer
    x = 455,473.45

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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.