Home / 990,788.31-1,369,786.68-732,257.55

Finding the Fourth Proportional to 990,788.31, 1,369,786.68 and 732,257.55

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Solution

The fourth proportional to 990,788.31, 1,369,786.68 and 732,257.55 is: 1,012,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,788.31 : 1,369,786.68 = 732,257.55 : x
  2. Step 2: Convert to fraction form
    990,788.31/1,369,786.68 = 732,257.55/x
  3. Step 3: Cross multiply
    990,788.31x = 1,369,786.68 × 732,257.55
  4. Step 4: Simplify right side
    990,788.31x = 1,003,036,638,319.43
  5. Step 5: Solve for x
    x = 1,003,036,638,319.43/990,788.31
  6. Step 6: Final answer
    x = 1,012,362.21

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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.