Home / 987,294.08-1,362,611.25-579,620.78

Finding the Fourth Proportional to 987,294.08, 1,362,611.25 and 579,620.78

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Solution

The fourth proportional to 987,294.08, 1,362,611.25 and 579,620.78 is: 799,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,294.08 : 1,362,611.25 = 579,620.78 : x
  2. Step 2: Convert to fraction form
    987,294.08/1,362,611.25 = 579,620.78/x
  3. Step 3: Cross multiply
    987,294.08x = 1,362,611.25 × 579,620.78
  4. Step 4: Simplify right side
    987,294.08x = 789,797,788,748.72
  5. Step 5: Solve for x
    x = 789,797,788,748.72/987,294.08
  6. Step 6: Final answer
    x = 799,962.05

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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.