Home / 1,186,971.07-1,780,458.83-288,413.57

Finding the Fourth Proportional to 1,186,971.07, 1,780,458.83 and 288,413.57

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Solution

The fourth proportional to 1,186,971.07, 1,780,458.83 and 288,413.57 is: 432,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,971.07 : 1,780,458.83 = 288,413.57 : x
  2. Step 2: Convert to fraction form
    1,186,971.07/1,780,458.83 = 288,413.57/x
  3. Step 3: Cross multiply
    1,186,971.07x = 1,780,458.83 × 288,413.57
  4. Step 4: Simplify right side
    1,186,971.07x = 513,508,478,135.51
  5. Step 5: Solve for x
    x = 513,508,478,135.51/1,186,971.07
  6. Step 6: Final answer
    x = 432,620.89

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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.