Home / 1,220,268.88-1,684,032.78-703,830.64

Finding the Fourth Proportional to 1,220,268.88, 1,684,032.78 and 703,830.64

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Solution

The fourth proportional to 1,220,268.88, 1,684,032.78 and 703,830.64 is: 971,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,268.88 : 1,684,032.78 = 703,830.64 : x
  2. Step 2: Convert to fraction form
    1,220,268.88/1,684,032.78 = 703,830.64/x
  3. Step 3: Cross multiply
    1,220,268.88x = 1,684,032.78 × 703,830.64
  4. Step 4: Simplify right side
    1,220,268.88x = 1,185,273,869,328.38
  5. Step 5: Solve for x
    x = 1,185,273,869,328.38/1,220,268.88
  6. Step 6: Final answer
    x = 971,321.89

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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.