Home / 1,688,105.09-2,329,806.80-962,786.54

Finding the Fourth Proportional to 1,688,105.09, 2,329,806.80 and 962,786.54

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Solution

The fourth proportional to 1,688,105.09, 2,329,806.80 and 962,786.54 is: 1,328,771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,105.09 : 2,329,806.80 = 962,786.54 : x
  2. Step 2: Convert to fraction form
    1,688,105.09/2,329,806.80 = 962,786.54/x
  3. Step 3: Cross multiply
    1,688,105.09x = 2,329,806.80 × 962,786.54
  4. Step 4: Simplify right side
    1,688,105.09x = 2,243,106,636,071.96
  5. Step 5: Solve for x
    x = 2,243,106,636,071.96/1,688,105.09
  6. Step 6: Final answer
    x = 1,328,771.91

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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.