Home / 2,115,015.85-2,918,413.95-1,209,422.89

Finding the Fourth Proportional to 2,115,015.85, 2,918,413.95 and 1,209,422.89

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Solution

The fourth proportional to 2,115,015.85, 2,918,413.95 and 1,209,422.89 is: 1,668,827.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,015.85 : 2,918,413.95 = 1,209,422.89 : x
  2. Step 2: Convert to fraction form
    2,115,015.85/2,918,413.95 = 1,209,422.89/x
  3. Step 3: Cross multiply
    2,115,015.85x = 2,918,413.95 × 1,209,422.89
  4. Step 4: Simplify right side
    2,115,015.85x = 3,529,596,633,625.32
  5. Step 5: Solve for x
    x = 3,529,596,633,625.32/2,115,015.85
  6. Step 6: Final answer
    x = 1,668,827.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.