Home / 1,431,173.07-1,975,023.15-786,659.31

Finding the Fourth Proportional to 1,431,173.07, 1,975,023.15 and 786,659.31

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Solution

The fourth proportional to 1,431,173.07, 1,975,023.15 and 786,659.31 is: 1,085,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,173.07 : 1,975,023.15 = 786,659.31 : x
  2. Step 2: Convert to fraction form
    1,431,173.07/1,975,023.15 = 786,659.31/x
  3. Step 3: Cross multiply
    1,431,173.07x = 1,975,023.15 × 786,659.31
  4. Step 4: Simplify right side
    1,431,173.07x = 1,553,670,348,413.03
  5. Step 5: Solve for x
    x = 1,553,670,348,413.03/1,431,173.07
  6. Step 6: Final answer
    x = 1,085,592.22

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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.