Home / 1,272,413.84-1,755,886.47-699,449.90

Finding the Fourth Proportional to 1,272,413.84, 1,755,886.47 and 699,449.90

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Solution

The fourth proportional to 1,272,413.84, 1,755,886.47 and 699,449.90 is: 965,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,413.84 : 1,755,886.47 = 699,449.90 : x
  2. Step 2: Convert to fraction form
    1,272,413.84/1,755,886.47 = 699,449.90/x
  3. Step 3: Cross multiply
    1,272,413.84x = 1,755,886.47 × 699,449.90
  4. Step 4: Simplify right side
    1,272,413.84x = 1,228,154,615,852.85
  5. Step 5: Solve for x
    x = 1,228,154,615,852.85/1,272,413.84
  6. Step 6: Final answer
    x = 965,216.33

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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.