Home / 1,640,808.70-2,460,982.65-518,991.10

Finding the Fourth Proportional to 1,640,808.70, 2,460,982.65 and 518,991.10

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Solution

The fourth proportional to 1,640,808.70, 2,460,982.65 and 518,991.10 is: 778,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,808.70 : 2,460,982.65 = 518,991.10 : x
  2. Step 2: Convert to fraction form
    1,640,808.70/2,460,982.65 = 518,991.10/x
  3. Step 3: Cross multiply
    1,640,808.70x = 2,460,982.65 × 518,991.10
  4. Step 4: Simplify right side
    1,640,808.70x = 1,277,228,092,604.41
  5. Step 5: Solve for x
    x = 1,277,228,092,604.41/1,640,808.70
  6. Step 6: Final answer
    x = 778,413.77

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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.