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Finding the Fourth Proportional to 567,284.40, 849,760.20 and 389,991.60

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Solution

The fourth proportional to 567,284.40, 849,760.20 and 389,991.60 is: 584,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,284.40 : 849,760.20 = 389,991.60 : x
  2. Step 2: Convert to fraction form
    567,284.40/849,760.20 = 389,991.60/x
  3. Step 3: Cross multiply
    567,284.40x = 849,760.20 × 389,991.60
  4. Step 4: Simplify right side
    567,284.40x = 331,399,340,014.32
  5. Step 5: Solve for x
    x = 331,399,340,014.32/567,284.40
  6. Step 6: Final answer
    x = 584,185.53

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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.