Home / 1,427,638.20-2,141,654.22-828,881.34

Finding the Fourth Proportional to 1,427,638.20, 2,141,654.22 and 828,881.34

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Solution

The fourth proportional to 1,427,638.20, 2,141,654.22 and 828,881.34 is: 1,243,436.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,638.20 : 2,141,654.22 = 828,881.34 : x
  2. Step 2: Convert to fraction form
    1,427,638.20/2,141,654.22 = 828,881.34/x
  3. Step 3: Cross multiply
    1,427,638.20x = 2,141,654.22 × 828,881.34
  4. Step 4: Simplify right side
    1,427,638.20x = 1,775,177,219,690.26
  5. Step 5: Solve for x
    x = 1,775,177,219,690.26/1,427,638.20
  6. Step 6: Final answer
    x = 1,243,436.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.