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Finding the Fourth Proportional to 617,025.34, 851,489.04 and 345,089.98

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Solution

The fourth proportional to 617,025.34, 851,489.04 and 345,089.98 is: 476,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,025.34 : 851,489.04 = 345,089.98 : x
  2. Step 2: Convert to fraction form
    617,025.34/851,489.04 = 345,089.98/x
  3. Step 3: Cross multiply
    617,025.34x = 851,489.04 × 345,089.98
  4. Step 4: Simplify right side
    617,025.34x = 293,840,335,783.82
  5. Step 5: Solve for x
    x = 293,840,335,783.82/617,025.34
  6. Step 6: Final answer
    x = 476,220.86

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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.