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Finding the Fourth Proportional to 561,938.92, 775,475.37 and 307,290.11

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Solution

The fourth proportional to 561,938.92, 775,475.37 and 307,290.11 is: 424,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,938.92 : 775,475.37 = 307,290.11 : x
  2. Step 2: Convert to fraction form
    561,938.92/775,475.37 = 307,290.11/x
  3. Step 3: Cross multiply
    561,938.92x = 775,475.37 × 307,290.11
  4. Step 4: Simplify right side
    561,938.92x = 238,295,907,872.21
  5. Step 5: Solve for x
    x = 238,295,907,872.21/561,938.92
  6. Step 6: Final answer
    x = 424,060.16

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Similar ratio
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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.