Home / 1,117,231.46-1,673,732.78-660,455.15

Finding the Fourth Proportional to 1,117,231.46, 1,673,732.78 and 660,455.15

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Solution

The fourth proportional to 1,117,231.46, 1,673,732.78 and 660,455.15 is: 989,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,231.46 : 1,673,732.78 = 660,455.15 : x
  2. Step 2: Convert to fraction form
    1,117,231.46/1,673,732.78 = 660,455.15/x
  3. Step 3: Cross multiply
    1,117,231.46x = 1,673,732.78 × 660,455.15
  4. Step 4: Simplify right side
    1,117,231.46x = 1,105,425,434,274.82
  5. Step 5: Solve for x
    x = 1,105,425,434,274.82/1,117,231.46
  6. Step 6: Final answer
    x = 989,432.78

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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.