Home / 1,208,997.80-1,813,059.30-489,037.40

Finding the Fourth Proportional to 1,208,997.80, 1,813,059.30 and 489,037.40

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Solution

The fourth proportional to 1,208,997.80, 1,813,059.30 and 489,037.40 is: 733,379.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,997.80 : 1,813,059.30 = 489,037.40 : x
  2. Step 2: Convert to fraction form
    1,208,997.80/1,813,059.30 = 489,037.40/x
  3. Step 3: Cross multiply
    1,208,997.80x = 1,813,059.30 × 489,037.40
  4. Step 4: Simplify right side
    1,208,997.80x = 886,653,806,117.82
  5. Step 5: Solve for x
    x = 886,653,806,117.82/1,208,997.80
  6. Step 6: Final answer
    x = 733,379.17

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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.