Home / 1,288,741.14-1,778,413.59-715,818.06

Finding the Fourth Proportional to 1,288,741.14, 1,778,413.59 and 715,818.06

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Solution

The fourth proportional to 1,288,741.14, 1,778,413.59 and 715,818.06 is: 987,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,741.14 : 1,778,413.59 = 715,818.06 : x
  2. Step 2: Convert to fraction form
    1,288,741.14/1,778,413.59 = 715,818.06/x
  3. Step 3: Cross multiply
    1,288,741.14x = 1,778,413.59 × 715,818.06
  4. Step 4: Simplify right side
    1,288,741.14x = 1,273,020,565,871.44
  5. Step 5: Solve for x
    x = 1,273,020,565,871.44/1,288,741.14
  6. Step 6: Final answer
    x = 987,801.60

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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.