Home / 1,327,328.40-1,990,992.60-907,424.40

Finding the Fourth Proportional to 1,327,328.40, 1,990,992.60 and 907,424.40

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Solution

The fourth proportional to 1,327,328.40, 1,990,992.60 and 907,424.40 is: 1,361,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,328.40 : 1,990,992.60 = 907,424.40 : x
  2. Step 2: Convert to fraction form
    1,327,328.40/1,990,992.60 = 907,424.40/x
  3. Step 3: Cross multiply
    1,327,328.40x = 1,990,992.60 × 907,424.40
  4. Step 4: Simplify right side
    1,327,328.40x = 1,806,675,265,459.44
  5. Step 5: Solve for x
    x = 1,806,675,265,459.44/1,327,328.40
  6. Step 6: Final answer
    x = 1,361,136.60

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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.