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Finding the Fourth Proportional to 647,030.60, 969,816.90 and 310,232.60

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Solution

The fourth proportional to 647,030.60, 969,816.90 and 310,232.60 is: 464,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,030.60 : 969,816.90 = 310,232.60 : x
  2. Step 2: Convert to fraction form
    647,030.60/969,816.90 = 310,232.60/x
  3. Step 3: Cross multiply
    647,030.60x = 969,816.90 × 310,232.60
  4. Step 4: Simplify right side
    647,030.60x = 300,868,818,410.94
  5. Step 5: Solve for x
    x = 300,868,818,410.94/647,030.60
  6. Step 6: Final answer
    x = 464,999.37

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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.