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Finding the Fourth Proportional to 1,325,396, 1,988,094 and 328,124

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Solution

The fourth proportional to 1,325,396, 1,988,094 and 328,124 is: 492,186

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,396 : 1,988,094 = 328,124 : x
  2. Step 2: Convert to fraction form
    1,325,396/1,988,094 = 328,124/x
  3. Step 3: Cross multiply
    1,325,396x = 1,988,094 × 328,124
  4. Step 4: Simplify right side
    1,325,396x = 652,341,355,656
  5. Step 5: Solve for x
    x = 652,341,355,656/1,325,396
  6. Step 6: Final answer
    x = 492,186

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.