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Finding the Fourth Proportional to 601,918.19, 830,629.10 and 329,976.79

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Solution

The fourth proportional to 601,918.19, 830,629.10 and 329,976.79 is: 455,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,918.19 : 830,629.10 = 329,976.79 : x
  2. Step 2: Convert to fraction form
    601,918.19/830,629.10 = 329,976.79/x
  3. Step 3: Cross multiply
    601,918.19x = 830,629.10 × 329,976.79
  4. Step 4: Simplify right side
    601,918.19x = 274,088,324,098.59
  5. Step 5: Solve for x
    x = 274,088,324,098.59/601,918.19
  6. Step 6: Final answer
    x = 455,358.10

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Double scale
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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.