Home / 1,431,647.08-1,975,555.47-842,852.86

Finding the Fourth Proportional to 1,431,647.08, 1,975,555.47 and 842,852.86

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Solution

The fourth proportional to 1,431,647.08, 1,975,555.47 and 842,852.86 is: 1,163,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,647.08 : 1,975,555.47 = 842,852.86 : x
  2. Step 2: Convert to fraction form
    1,431,647.08/1,975,555.47 = 842,852.86/x
  3. Step 3: Cross multiply
    1,431,647.08x = 1,975,555.47 × 842,852.86
  4. Step 4: Simplify right side
    1,431,647.08x = 1,665,102,577,978.14
  5. Step 5: Solve for x
    x = 1,665,102,577,978.14/1,431,647.08
  6. Step 6: Final answer
    x = 1,163,067.77

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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.