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Finding the Fourth Proportional to 433,998.40, 650,997.60 and 355,201.60

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Solution

The fourth proportional to 433,998.40, 650,997.60 and 355,201.60 is: 532,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,998.40 : 650,997.60 = 355,201.60 : x
  2. Step 2: Convert to fraction form
    433,998.40/650,997.60 = 355,201.60/x
  3. Step 3: Cross multiply
    433,998.40x = 650,997.60 × 355,201.60
  4. Step 4: Simplify right side
    433,998.40x = 231,235,389,116.16
  5. Step 5: Solve for x
    x = 231,235,389,116.16/433,998.40
  6. Step 6: Final answer
    x = 532,802.40

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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.