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Finding the Fourth Proportional to 574,341.51, 861,512.46 and 258,429.36

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Solution

The fourth proportional to 574,341.51, 861,512.46 and 258,429.36 is: 387,644.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,341.51 : 861,512.46 = 258,429.36 : x
  2. Step 2: Convert to fraction form
    574,341.51/861,512.46 = 258,429.36/x
  3. Step 3: Cross multiply
    574,341.51x = 861,512.46 × 258,429.36
  4. Step 4: Simplify right side
    574,341.51x = 222,640,113,669.83
  5. Step 5: Solve for x
    x = 222,640,113,669.83/574,341.51
  6. Step 6: Final answer
    x = 387,644.13

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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.