Home / 886,770.40-1,329,896.40-318,085.60

Finding the Fourth Proportional to 886,770.40, 1,329,896.40 and 318,085.60

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Solution

The fourth proportional to 886,770.40, 1,329,896.40 and 318,085.60 is: 477,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,770.40 : 1,329,896.40 = 318,085.60 : x
  2. Step 2: Convert to fraction form
    886,770.40/1,329,896.40 = 318,085.60/x
  3. Step 3: Cross multiply
    886,770.40x = 1,329,896.40 × 318,085.60
  4. Step 4: Simplify right side
    886,770.40x = 423,020,894,331.84
  5. Step 5: Solve for x
    x = 423,020,894,331.84/886,770.40
  6. Step 6: Final answer
    x = 477,035.42

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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.