Home / 690,858.96-1,034,375.04-353,172.72

Finding the Fourth Proportional to 690,858.96, 1,034,375.04 and 353,172.72

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Solution

The fourth proportional to 690,858.96, 1,034,375.04 and 353,172.72 is: 528,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,858.96 : 1,034,375.04 = 353,172.72 : x
  2. Step 2: Convert to fraction form
    690,858.96/1,034,375.04 = 353,172.72/x
  3. Step 3: Cross multiply
    690,858.96x = 1,034,375.04 × 353,172.72
  4. Step 4: Simplify right side
    690,858.96x = 365,313,046,376.91
  5. Step 5: Solve for x
    x = 365,313,046,376.91/690,858.96
  6. Step 6: Final answer
    x = 528,780.93

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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.