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Finding the Fourth Proportional to 744,365.60, 1,116,807.60 and 323,770.40

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Solution

The fourth proportional to 744,365.60, 1,116,807.60 and 323,770.40 is: 485,768.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,365.60 : 1,116,807.60 = 323,770.40 : x
  2. Step 2: Convert to fraction form
    744,365.60/1,116,807.60 = 323,770.40/x
  3. Step 3: Cross multiply
    744,365.60x = 1,116,807.60 × 323,770.40
  4. Step 4: Simplify right side
    744,365.60x = 361,589,243,375.04
  5. Step 5: Solve for x
    x = 361,589,243,375.04/744,365.60
  6. Step 6: Final answer
    x = 485,768.34

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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.