Home / 2,078,686.80-3,117,738.60-658,886.40

Finding the Fourth Proportional to 2,078,686.80, 3,117,738.60 and 658,886.40

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Solution

The fourth proportional to 2,078,686.80, 3,117,738.60 and 658,886.40 is: 988,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,686.80 : 3,117,738.60 = 658,886.40 : x
  2. Step 2: Convert to fraction form
    2,078,686.80/3,117,738.60 = 658,886.40/x
  3. Step 3: Cross multiply
    2,078,686.80x = 3,117,738.60 × 658,886.40
  4. Step 4: Simplify right side
    2,078,686.80x = 2,054,235,562,295.04
  5. Step 5: Solve for x
    x = 2,054,235,562,295.04/2,078,686.80
  6. Step 6: Final answer
    x = 988,237.17

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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.