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Finding the Fourth Proportional to 400,808.18, 601,617.42 and 355,512.92

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Solution

The fourth proportional to 400,808.18, 601,617.42 and 355,512.92 is: 533,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,808.18 : 601,617.42 = 355,512.92 : x
  2. Step 2: Convert to fraction form
    400,808.18/601,617.42 = 355,512.92/x
  3. Step 3: Cross multiply
    400,808.18x = 601,617.42 × 355,512.92
  4. Step 4: Simplify right side
    400,808.18x = 213,882,765,707.07
  5. Step 5: Solve for x
    x = 213,882,765,707.07/400,808.18
  6. Step 6: Final answer
    x = 533,628.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.