Home / 1,326,964.40-1,990,446.60-329,692.40

Finding the Fourth Proportional to 1,326,964.40, 1,990,446.60 and 329,692.40

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Solution

The fourth proportional to 1,326,964.40, 1,990,446.60 and 329,692.40 is: 494,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,964.40 : 1,990,446.60 = 329,692.40 : x
  2. Step 2: Convert to fraction form
    1,326,964.40/1,990,446.60 = 329,692.40/x
  3. Step 3: Cross multiply
    1,326,964.40x = 1,990,446.60 × 329,692.40
  4. Step 4: Simplify right side
    1,326,964.40x = 656,235,116,625.84
  5. Step 5: Solve for x
    x = 656,235,116,625.84/1,326,964.40
  6. Step 6: Final answer
    x = 494,538.60

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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.