Home / 690,800.67-1,036,116.14-185,401.35

Finding the Fourth Proportional to 690,800.67, 1,036,116.14 and 185,401.35

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Solution

The fourth proportional to 690,800.67, 1,036,116.14 and 185,401.35 is: 278,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,800.67 : 1,036,116.14 = 185,401.35 : x
  2. Step 2: Convert to fraction form
    690,800.67/1,036,116.14 = 185,401.35/x
  3. Step 3: Cross multiply
    690,800.67x = 1,036,116.14 × 185,401.35
  4. Step 4: Simplify right side
    690,800.67x = 192,097,330,185.78
  5. Step 5: Solve for x
    x = 192,097,330,185.78/690,800.67
  6. Step 6: Final answer
    x = 278,079.25

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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.