Home / 1,431,642-1,975,615.62-787,057.50

Finding the Fourth Proportional to 1,431,642, 1,975,615.62 and 787,057.50

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Solution

The fourth proportional to 1,431,642, 1,975,615.62 and 787,057.50 is: 1,086,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,642 : 1,975,615.62 = 787,057.50 : x
  2. Step 2: Convert to fraction form
    1,431,642/1,975,615.62 = 787,057.50/x
  3. Step 3: Cross multiply
    1,431,642x = 1,975,615.62 × 787,057.50
  4. Step 4: Simplify right side
    1,431,642x = 1,554,923,090,838.15
  5. Step 5: Solve for x
    x = 1,554,923,090,838.15/1,431,642
  6. Step 6: Final answer
    x = 1,086,111.68

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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.