Home / 758,169.46-1,137,647.78-309,219.70

Finding the Fourth Proportional to 758,169.46, 1,137,647.78 and 309,219.70

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Solution

The fourth proportional to 758,169.46, 1,137,647.78 and 309,219.70 is: 463,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,169.46 : 1,137,647.78 = 309,219.70 : x
  2. Step 2: Convert to fraction form
    758,169.46/1,137,647.78 = 309,219.70/x
  3. Step 3: Cross multiply
    758,169.46x = 1,137,647.78 × 309,219.70
  4. Step 4: Simplify right side
    758,169.46x = 351,783,105,237.27
  5. Step 5: Solve for x
    x = 351,783,105,237.27/758,169.46
  6. Step 6: Final answer
    x = 463,990.08

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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.