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Finding the Fourth Proportional to 616,058.57, 849,842.39 and 389,835.29

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Solution

The fourth proportional to 616,058.57, 849,842.39 and 389,835.29 is: 537,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,058.57 : 849,842.39 = 389,835.29 : x
  2. Step 2: Convert to fraction form
    616,058.57/849,842.39 = 389,835.29/x
  3. Step 3: Cross multiply
    616,058.57x = 849,842.39 × 389,835.29
  4. Step 4: Simplify right side
    616,058.57x = 331,298,548,361.56
  5. Step 5: Solve for x
    x = 331,298,548,361.56/616,058.57
  6. Step 6: Final answer
    x = 537,771.19

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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.