Home / 1,210,918.46-1,670,981.19-720,861.98

Finding the Fourth Proportional to 1,210,918.46, 1,670,981.19 and 720,861.98

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Solution

The fourth proportional to 1,210,918.46, 1,670,981.19 and 720,861.98 is: 994,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,918.46 : 1,670,981.19 = 720,861.98 : x
  2. Step 2: Convert to fraction form
    1,210,918.46/1,670,981.19 = 720,861.98/x
  3. Step 3: Cross multiply
    1,210,918.46x = 1,670,981.19 × 720,861.98
  4. Step 4: Simplify right side
    1,210,918.46x = 1,204,546,809,166.16
  5. Step 5: Solve for x
    x = 1,204,546,809,166.16/1,210,918.46
  6. Step 6: Final answer
    x = 994,738.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.