Home / 1,325,892.30-1,988,838.45-328,620.30

Finding the Fourth Proportional to 1,325,892.30, 1,988,838.45 and 328,620.30

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Solution

The fourth proportional to 1,325,892.30, 1,988,838.45 and 328,620.30 is: 492,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,892.30 : 1,988,838.45 = 328,620.30 : x
  2. Step 2: Convert to fraction form
    1,325,892.30/1,988,838.45 = 328,620.30/x
  3. Step 3: Cross multiply
    1,325,892.30x = 1,988,838.45 × 328,620.30
  4. Step 4: Simplify right side
    1,325,892.30x = 653,572,688,090.54
  5. Step 5: Solve for x
    x = 653,572,688,090.54/1,325,892.30
  6. Step 6: Final answer
    x = 492,930.45

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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.