Home / 1,431,781.23-1,975,741.23-842,987.73

Finding the Fourth Proportional to 1,431,781.23, 1,975,741.23 and 842,987.73

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Solution

The fourth proportional to 1,431,781.23, 1,975,741.23 and 842,987.73 is: 1,163,254.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,781.23 : 1,975,741.23 = 842,987.73 : x
  2. Step 2: Convert to fraction form
    1,431,781.23/1,975,741.23 = 842,987.73/x
  3. Step 3: Cross multiply
    1,431,781.23x = 1,975,741.23 × 842,987.73
  4. Step 4: Simplify right side
    1,431,781.23x = 1,665,525,614,545.11
  5. Step 5: Solve for x
    x = 1,665,525,614,545.11/1,431,781.23
  6. Step 6: Final answer
    x = 1,163,254.26

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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.