Home / 731,663.90-1,097,469.47-191,915.87

Finding the Fourth Proportional to 731,663.90, 1,097,469.47 and 191,915.87

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Solution

The fourth proportional to 731,663.90, 1,097,469.47 and 191,915.87 is: 287,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,663.90 : 1,097,469.47 = 191,915.87 : x
  2. Step 2: Convert to fraction form
    731,663.90/1,097,469.47 = 191,915.87/x
  3. Step 3: Cross multiply
    731,663.90x = 1,097,469.47 × 191,915.87
  4. Step 4: Simplify right side
    731,663.90x = 210,621,801,686.56
  5. Step 5: Solve for x
    x = 210,621,801,686.56/731,663.90
  6. Step 6: Final answer
    x = 287,866.88

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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.