Home / 1,885,990.52-2,829,407.69-687,912.89

Finding the Fourth Proportional to 1,885,990.52, 2,829,407.69 and 687,912.89

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Solution

The fourth proportional to 1,885,990.52, 2,829,407.69 and 687,912.89 is: 1,032,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885,990.52 : 2,829,407.69 = 687,912.89 : x
  2. Step 2: Convert to fraction form
    1,885,990.52/2,829,407.69 = 687,912.89/x
  3. Step 3: Cross multiply
    1,885,990.52x = 2,829,407.69 × 687,912.89
  4. Step 4: Simplify right side
    1,885,990.52x = 1,946,386,021,016.12
  5. Step 5: Solve for x
    x = 1,946,386,021,016.12/1,885,990.52
  6. Step 6: Final answer
    x = 1,032,023.23

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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.