Home / 1,208,987.80-1,813,044.30-489,027.40

Finding the Fourth Proportional to 1,208,987.80, 1,813,044.30 and 489,027.40

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Solution

The fourth proportional to 1,208,987.80, 1,813,044.30 and 489,027.40 is: 733,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,987.80 : 1,813,044.30 = 489,027.40 : x
  2. Step 2: Convert to fraction form
    1,208,987.80/1,813,044.30 = 489,027.40/x
  3. Step 3: Cross multiply
    1,208,987.80x = 1,813,044.30 × 489,027.40
  4. Step 4: Simplify right side
    1,208,987.80x = 886,628,340,113.82
  5. Step 5: Solve for x
    x = 886,628,340,113.82/1,208,987.80
  6. Step 6: Final answer
    x = 733,364.17

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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.