Home / 1,097,968.10-1,515,015.23-689,781.02

Finding the Fourth Proportional to 1,097,968.10, 1,515,015.23 and 689,781.02

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Solution

The fourth proportional to 1,097,968.10, 1,515,015.23 and 689,781.02 is: 951,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,968.10 : 1,515,015.23 = 689,781.02 : x
  2. Step 2: Convert to fraction form
    1,097,968.10/1,515,015.23 = 689,781.02/x
  3. Step 3: Cross multiply
    1,097,968.10x = 1,515,015.23 × 689,781.02
  4. Step 4: Simplify right side
    1,097,968.10x = 1,045,028,739,640.95
  5. Step 5: Solve for x
    x = 1,045,028,739,640.95/1,097,968.10
  6. Step 6: Final answer
    x = 951,784.25

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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.