Home / 1,328,258.54-1,992,381.01-518,725.18

Finding the Fourth Proportional to 1,328,258.54, 1,992,381.01 and 518,725.18

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Solution

The fourth proportional to 1,328,258.54, 1,992,381.01 and 518,725.18 is: 778,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,258.54 : 1,992,381.01 = 518,725.18 : x
  2. Step 2: Convert to fraction form
    1,328,258.54/1,992,381.01 = 518,725.18/x
  3. Step 3: Cross multiply
    1,328,258.54x = 1,992,381.01 × 518,725.18
  4. Step 4: Simplify right side
    1,328,258.54x = 1,033,498,185,485.30
  5. Step 5: Solve for x
    x = 1,033,498,185,485.30/1,328,258.54
  6. Step 6: Final answer
    x = 778,085.10

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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.