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Finding the Fourth Proportional to 569,349.36, 785,766.04 and 342,990

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Solution

The fourth proportional to 569,349.36, 785,766.04 and 342,990 is: 473,364.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,349.36 : 785,766.04 = 342,990 : x
  2. Step 2: Convert to fraction form
    569,349.36/785,766.04 = 342,990/x
  3. Step 3: Cross multiply
    569,349.36x = 785,766.04 × 342,990
  4. Step 4: Simplify right side
    569,349.36x = 269,509,894,059.60
  5. Step 5: Solve for x
    x = 269,509,894,059.60/569,349.36
  6. Step 6: Final answer
    x = 473,364.71

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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.