Home / 1,054,408.80-1,581,613.20-485,788.80

Finding the Fourth Proportional to 1,054,408.80, 1,581,613.20 and 485,788.80

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Solution

The fourth proportional to 1,054,408.80, 1,581,613.20 and 485,788.80 is: 728,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,408.80 : 1,581,613.20 = 485,788.80 : x
  2. Step 2: Convert to fraction form
    1,054,408.80/1,581,613.20 = 485,788.80/x
  3. Step 3: Cross multiply
    1,054,408.80x = 1,581,613.20 × 485,788.80
  4. Step 4: Simplify right side
    1,054,408.80x = 768,329,978,492.16
  5. Step 5: Solve for x
    x = 768,329,978,492.16/1,054,408.80
  6. Step 6: Final answer
    x = 728,683.20

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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.