Home / 1,330,674.20-1,996,011.30-489,116.60

Finding the Fourth Proportional to 1,330,674.20, 1,996,011.30 and 489,116.60

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Solution

The fourth proportional to 1,330,674.20, 1,996,011.30 and 489,116.60 is: 733,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,674.20 : 1,996,011.30 = 489,116.60 : x
  2. Step 2: Convert to fraction form
    1,330,674.20/1,996,011.30 = 489,116.60/x
  3. Step 3: Cross multiply
    1,330,674.20x = 1,996,011.30 × 489,116.60
  4. Step 4: Simplify right side
    1,330,674.20x = 976,282,260,617.58
  5. Step 5: Solve for x
    x = 976,282,260,617.58/1,330,674.20
  6. Step 6: Final answer
    x = 733,674.90

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Double scale
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Similar ratio
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1.5x scale

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.