Home / 1,432,872.96-1,977,647.28-821,436.24

Finding the Fourth Proportional to 1,432,872.96, 1,977,647.28 and 821,436.24

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Solution

The fourth proportional to 1,432,872.96, 1,977,647.28 and 821,436.24 is: 1,133,744.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,872.96 : 1,977,647.28 = 821,436.24 : x
  2. Step 2: Convert to fraction form
    1,432,872.96/1,977,647.28 = 821,436.24/x
  3. Step 3: Cross multiply
    1,432,872.96x = 1,977,647.28 × 821,436.24
  4. Step 4: Simplify right side
    1,432,872.96x = 1,624,511,145,729.43
  5. Step 5: Solve for x
    x = 1,624,511,145,729.43/1,432,872.96
  6. Step 6: Final answer
    x = 1,133,744.02

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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.