Home / 1,325,417-1,988,125.52-328,145

Finding the Fourth Proportional to 1,325,417, 1,988,125.52 and 328,145

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Solution

The fourth proportional to 1,325,417, 1,988,125.52 and 328,145 is: 492,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,417 : 1,988,125.52 = 328,145 : x
  2. Step 2: Convert to fraction form
    1,325,417/1,988,125.52 = 328,145/x
  3. Step 3: Cross multiply
    1,325,417x = 1,988,125.52 × 328,145
  4. Step 4: Simplify right side
    1,325,417x = 652,393,448,760.40
  5. Step 5: Solve for x
    x = 652,393,448,760.40/1,325,417
  6. Step 6: Final answer
    x = 492,217.50

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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.