Home / 1,325,388.52-1,988,082.80-328,116.52

Finding the Fourth Proportional to 1,325,388.52, 1,988,082.80 and 328,116.52

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Solution

The fourth proportional to 1,325,388.52, 1,988,082.80 and 328,116.52 is: 492,174.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,388.52 : 1,988,082.80 = 328,116.52 : x
  2. Step 2: Convert to fraction form
    1,325,388.52/1,988,082.80 = 328,116.52/x
  3. Step 3: Cross multiply
    1,325,388.52x = 1,988,082.80 × 328,116.52
  4. Step 4: Simplify right side
    1,325,388.52x = 652,322,809,807.86
  5. Step 5: Solve for x
    x = 652,322,809,807.86/1,325,388.52
  6. Step 6: Final answer
    x = 492,174.78

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Similar ratio
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1.5x scale

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.