Home / 1,222,955.79-1,832,661.80-689,341.16

Finding the Fourth Proportional to 1,222,955.79, 1,832,661.80 and 689,341.16

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Solution

The fourth proportional to 1,222,955.79, 1,832,661.80 and 689,341.16 is: 1,033,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,955.79 : 1,832,661.80 = 689,341.16 : x
  2. Step 2: Convert to fraction form
    1,222,955.79/1,832,661.80 = 689,341.16/x
  3. Step 3: Cross multiply
    1,222,955.79x = 1,832,661.80 × 689,341.16
  4. Step 4: Simplify right side
    1,222,955.79x = 1,263,329,198,489.67
  5. Step 5: Solve for x
    x = 1,263,329,198,489.67/1,222,955.79
  6. Step 6: Final answer
    x = 1,033,012.97

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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.