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Finding the Fourth Proportional to 561,968.33, 775,587.31 and 368,538.81

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Solution

The fourth proportional to 561,968.33, 775,587.31 and 368,538.81 is: 508,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,968.33 : 775,587.31 = 368,538.81 : x
  2. Step 2: Convert to fraction form
    561,968.33/775,587.31 = 368,538.81/x
  3. Step 3: Cross multiply
    561,968.33x = 775,587.31 × 368,538.81
  4. Step 4: Simplify right side
    561,968.33x = 285,834,020,400.57
  5. Step 5: Solve for x
    x = 285,834,020,400.57/561,968.33
  6. Step 6: Final answer
    x = 508,630.13

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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.