Home / 1,097,818.21-1,515,919.13-690,051.38

Finding the Fourth Proportional to 1,097,818.21, 1,515,919.13 and 690,051.38

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Solution

The fourth proportional to 1,097,818.21, 1,515,919.13 and 690,051.38 is: 952,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,818.21 : 1,515,919.13 = 690,051.38 : x
  2. Step 2: Convert to fraction form
    1,097,818.21/1,515,919.13 = 690,051.38/x
  3. Step 3: Cross multiply
    1,097,818.21x = 1,515,919.13 × 690,051.38
  4. Step 4: Simplify right side
    1,097,818.21x = 1,046,062,081,505.49
  5. Step 5: Solve for x
    x = 1,046,062,081,505.49/1,097,818.21
  6. Step 6: Final answer
    x = 952,855.46

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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.