Home / 1,097,969.10-1,515,016.60-689,782.02

Finding the Fourth Proportional to 1,097,969.10, 1,515,016.60 and 689,782.02

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Solution

The fourth proportional to 1,097,969.10, 1,515,016.60 and 689,782.02 is: 951,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,969.10 : 1,515,016.60 = 689,782.02 : x
  2. Step 2: Convert to fraction form
    1,097,969.10/1,515,016.60 = 689,782.02/x
  3. Step 3: Cross multiply
    1,097,969.10x = 1,515,016.60 × 689,782.02
  4. Step 4: Simplify right side
    1,097,969.10x = 1,045,031,210,681.53
  5. Step 5: Solve for x
    x = 1,045,031,210,681.53/1,097,969.10
  6. Step 6: Final answer
    x = 951,785.63

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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.