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Finding the Fourth Proportional to 572,308.73, 789,786.48 and 342,999.14

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Solution

The fourth proportional to 572,308.73, 789,786.48 and 342,999.14 is: 473,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,308.73 : 789,786.48 = 342,999.14 : x
  2. Step 2: Convert to fraction form
    572,308.73/789,786.48 = 342,999.14/x
  3. Step 3: Cross multiply
    572,308.73x = 789,786.48 × 342,999.14
  4. Step 4: Simplify right side
    572,308.73x = 270,896,083,423.63
  5. Step 5: Solve for x
    x = 270,896,083,423.63/572,308.73
  6. Step 6: Final answer
    x = 473,339.07

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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.