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Finding the Fourth Proportional to 569,410.37, 785,795.65 and 339,987.71

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Solution

The fourth proportional to 569,410.37, 785,795.65 and 339,987.71 is: 469,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,410.37 : 785,795.65 = 339,987.71 : x
  2. Step 2: Convert to fraction form
    569,410.37/785,795.65 = 339,987.71/x
  3. Step 3: Cross multiply
    569,410.37x = 785,795.65 × 339,987.71
  4. Step 4: Simplify right side
    569,410.37x = 267,160,864,685.98
  5. Step 5: Solve for x
    x = 267,160,864,685.98/569,410.37
  6. Step 6: Final answer
    x = 469,188.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.