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Finding the Fourth Proportional to 569,020.23, 785,238.72 and 310,891.62

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Solution

The fourth proportional to 569,020.23, 785,238.72 and 310,891.62 is: 429,025.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,020.23 : 785,238.72 = 310,891.62 : x
  2. Step 2: Convert to fraction form
    569,020.23/785,238.72 = 310,891.62/x
  3. Step 3: Cross multiply
    569,020.23x = 785,238.72 × 310,891.62
  4. Step 4: Simplify right side
    569,020.23x = 244,124,137,747.53
  5. Step 5: Solve for x
    x = 244,124,137,747.53/569,020.23
  6. Step 6: Final answer
    x = 429,025.41

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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.