Home / 642,111.03-963,175.96-305,186.06

Finding the Fourth Proportional to 642,111.03, 963,175.96 and 305,186.06

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Solution

The fourth proportional to 642,111.03, 963,175.96 and 305,186.06 is: 457,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,111.03 : 963,175.96 = 305,186.06 : x
  2. Step 2: Convert to fraction form
    642,111.03/963,175.96 = 305,186.06/x
  3. Step 3: Cross multiply
    642,111.03x = 963,175.96 × 305,186.06
  4. Step 4: Simplify right side
    642,111.03x = 293,947,877,391.87
  5. Step 5: Solve for x
    x = 293,947,877,391.87/642,111.03
  6. Step 6: Final answer
    x = 457,783.57

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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.