Home / 1,684,005.12-2,323,805.76-919,896.48

Finding the Fourth Proportional to 1,684,005.12, 2,323,805.76 and 919,896.48

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Solution

The fourth proportional to 1,684,005.12, 2,323,805.76 and 919,896.48 is: 1,269,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684,005.12 : 2,323,805.76 = 919,896.48 : x
  2. Step 2: Convert to fraction form
    1,684,005.12/2,323,805.76 = 919,896.48/x
  3. Step 3: Cross multiply
    1,684,005.12x = 2,323,805.76 × 919,896.48
  4. Step 4: Simplify right side
    1,684,005.12x = 2,137,660,738,827.72
  5. Step 5: Solve for x
    x = 2,137,660,738,827.72/1,684,005.12
  6. Step 6: Final answer
    x = 1,269,390.88

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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.