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Finding the Fourth Proportional to 580,569.80, 870,329.82 and 206,505.32

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Solution

The fourth proportional to 580,569.80, 870,329.82 and 206,505.32 is: 309,571.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,569.80 : 870,329.82 = 206,505.32 : x
  2. Step 2: Convert to fraction form
    580,569.80/870,329.82 = 206,505.32/x
  3. Step 3: Cross multiply
    580,569.80x = 870,329.82 × 206,505.32
  4. Step 4: Simplify right side
    580,569.80x = 179,727,737,984.64
  5. Step 5: Solve for x
    x = 179,727,737,984.64/580,569.80
  6. Step 6: Final answer
    x = 309,571.28

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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.