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Finding the Fourth Proportional to 869,066.70, 1,303,600.05 and 764,004.30

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Solution

The fourth proportional to 869,066.70, 1,303,600.05 and 764,004.30 is: 1,146,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,066.70 : 1,303,600.05 = 764,004.30 : x
  2. Step 2: Convert to fraction form
    869,066.70/1,303,600.05 = 764,004.30/x
  3. Step 3: Cross multiply
    869,066.70x = 1,303,600.05 × 764,004.30
  4. Step 4: Simplify right side
    869,066.70x = 995,956,043,680.22
  5. Step 5: Solve for x
    x = 995,956,043,680.22/869,066.70
  6. Step 6: Final answer
    x = 1,146,006.45

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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.