Home / 1,207,639.74-1,666,559.94-663,825.80

Finding the Fourth Proportional to 1,207,639.74, 1,666,559.94 and 663,825.80

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Solution

The fourth proportional to 1,207,639.74, 1,666,559.94 and 663,825.80 is: 916,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,639.74 : 1,666,559.94 = 663,825.80 : x
  2. Step 2: Convert to fraction form
    1,207,639.74/1,666,559.94 = 663,825.80/x
  3. Step 3: Cross multiply
    1,207,639.74x = 1,666,559.94 × 663,825.80
  4. Step 4: Simplify right side
    1,207,639.74x = 1,106,305,485,418.45
  5. Step 5: Solve for x
    x = 1,106,305,485,418.45/1,207,639.74
  6. Step 6: Final answer
    x = 916,089.00

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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.