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Finding the Fourth Proportional to 703,390.80, 1,055,863.80 and 437,451.60

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Solution

The fourth proportional to 703,390.80, 1,055,863.80 and 437,451.60 is: 656,661.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,390.80 : 1,055,863.80 = 437,451.60 : x
  2. Step 2: Convert to fraction form
    703,390.80/1,055,863.80 = 437,451.60/x
  3. Step 3: Cross multiply
    703,390.80x = 1,055,863.80 × 437,451.60
  4. Step 4: Simplify right side
    703,390.80x = 461,889,308,692.08
  5. Step 5: Solve for x
    x = 461,889,308,692.08/703,390.80
  6. Step 6: Final answer
    x = 656,661.00

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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.