Home / 715,190.31-1,072,546.72-288,615.96

Finding the Fourth Proportional to 715,190.31, 1,072,546.72 and 288,615.96

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Solution

The fourth proportional to 715,190.31, 1,072,546.72 and 288,615.96 is: 432,827.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,190.31 : 1,072,546.72 = 288,615.96 : x
  2. Step 2: Convert to fraction form
    715,190.31/1,072,546.72 = 288,615.96/x
  3. Step 3: Cross multiply
    715,190.31x = 1,072,546.72 × 288,615.96
  4. Step 4: Simplify right side
    715,190.31x = 309,554,100,516.11
  5. Step 5: Solve for x
    x = 309,554,100,516.11/715,190.31
  6. Step 6: Final answer
    x = 432,827.59

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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.