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Finding the Fourth Proportional to 567,004.40, 849,340.20 and 389,711.60

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Solution

The fourth proportional to 567,004.40, 849,340.20 and 389,711.60 is: 583,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,004.40 : 849,340.20 = 389,711.60 : x
  2. Step 2: Convert to fraction form
    567,004.40/849,340.20 = 389,711.60/x
  3. Step 3: Cross multiply
    567,004.40x = 849,340.20 × 389,711.60
  4. Step 4: Simplify right side
    567,004.40x = 330,997,728,286.32
  5. Step 5: Solve for x
    x = 330,997,728,286.32/567,004.40
  6. Step 6: Final answer
    x = 583,765.71

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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.