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Finding the Fourth Proportional to 576,230.40, 864,857.60 and 339,276.80

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Solution

The fourth proportional to 576,230.40, 864,857.60 and 339,276.80 is: 509,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,230.40 : 864,857.60 = 339,276.80 : x
  2. Step 2: Convert to fraction form
    576,230.40/864,857.60 = 339,276.80/x
  3. Step 3: Cross multiply
    576,230.40x = 864,857.60 × 339,276.80
  4. Step 4: Simplify right side
    576,230.40x = 293,426,118,983.68
  5. Step 5: Solve for x
    x = 293,426,118,983.68/576,230.40
  6. Step 6: Final answer
    x = 509,216.66

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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.