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Finding the Fourth Proportional to 1,198,089, 1,652,014.98 and 979,616.04

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Solution

The fourth proportional to 1,198,089, 1,652,014.98 and 979,616.04 is: 1,350,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,089 : 1,652,014.98 = 979,616.04 : x
  2. Step 2: Convert to fraction form
    1,198,089/1,652,014.98 = 979,616.04/x
  3. Step 3: Cross multiply
    1,198,089x = 1,652,014.98 × 979,616.04
  4. Step 4: Simplify right side
    1,198,089x = 1,618,340,372,728.28
  5. Step 5: Solve for x
    x = 1,618,340,372,728.28/1,198,089
  6. Step 6: Final answer
    x = 1,350,768.08

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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.