Home / 1,028,389.86-1,419,009.30-646,146

Finding the Fourth Proportional to 1,028,389.86, 1,419,009.30 and 646,146

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Solution

The fourth proportional to 1,028,389.86, 1,419,009.30 and 646,146 is: 891,575.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,389.86 : 1,419,009.30 = 646,146 : x
  2. Step 2: Convert to fraction form
    1,028,389.86/1,419,009.30 = 646,146/x
  3. Step 3: Cross multiply
    1,028,389.86x = 1,419,009.30 × 646,146
  4. Step 4: Simplify right side
    1,028,389.86x = 916,887,183,157.80
  5. Step 5: Solve for x
    x = 916,887,183,157.80/1,028,389.86
  6. Step 6: Final answer
    x = 891,575.48

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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.