Home / 1,431,636.02-1,975,607.31-787,051.49

Finding the Fourth Proportional to 1,431,636.02, 1,975,607.31 and 787,051.49

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Solution

The fourth proportional to 1,431,636.02, 1,975,607.31 and 787,051.49 is: 1,086,103.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,636.02 : 1,975,607.31 = 787,051.49 : x
  2. Step 2: Convert to fraction form
    1,431,636.02/1,975,607.31 = 787,051.49/x
  3. Step 3: Cross multiply
    1,431,636.02x = 1,975,607.31 × 787,051.49
  4. Step 4: Simplify right side
    1,431,636.02x = 1,554,904,670,063.80
  5. Step 5: Solve for x
    x = 1,554,904,670,063.80/1,431,636.02
  6. Step 6: Final answer
    x = 1,086,103.35

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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.