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Finding the Fourth Proportional to 576,350.40, 864,914.40 and 339,441.60

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Solution

The fourth proportional to 576,350.40, 864,914.40 and 339,441.60 is: 509,391.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,350.40 : 864,914.40 = 339,441.60 : x
  2. Step 2: Convert to fraction form
    576,350.40/864,914.40 = 339,441.60/x
  3. Step 3: Cross multiply
    576,350.40x = 864,914.40 × 339,441.60
  4. Step 4: Simplify right side
    576,350.40x = 293,587,927,799.04
  5. Step 5: Solve for x
    x = 293,587,927,799.04/576,350.40
  6. Step 6: Final answer
    x = 509,391.38

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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.