Home / 1,369,049.93-1,889,359.67-788,359.25

Finding the Fourth Proportional to 1,369,049.93, 1,889,359.67 and 788,359.25

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Solution

The fourth proportional to 1,369,049.93, 1,889,359.67 and 788,359.25 is: 1,087,976.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,049.93 : 1,889,359.67 = 788,359.25 : x
  2. Step 2: Convert to fraction form
    1,369,049.93/1,889,359.67 = 788,359.25/x
  3. Step 3: Cross multiply
    1,369,049.93x = 1,889,359.67 × 788,359.25
  4. Step 4: Simplify right side
    1,369,049.93x = 1,489,494,164,945.55
  5. Step 5: Solve for x
    x = 1,489,494,164,945.55/1,369,049.93
  6. Step 6: Final answer
    x = 1,087,976.51

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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.