Home / 886,766.40-1,329,890.40-318,081.60

Finding the Fourth Proportional to 886,766.40, 1,329,890.40 and 318,081.60

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Solution

The fourth proportional to 886,766.40, 1,329,890.40 and 318,081.60 is: 477,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,766.40 : 1,329,890.40 = 318,081.60 : x
  2. Step 2: Convert to fraction form
    886,766.40/1,329,890.40 = 318,081.60/x
  3. Step 3: Cross multiply
    886,766.40x = 1,329,890.40 × 318,081.60
  4. Step 4: Simplify right side
    886,766.40x = 423,013,666,256.64
  5. Step 5: Solve for x
    x = 423,013,666,256.64/886,766.40
  6. Step 6: Final answer
    x = 477,029.43

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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.