Home / 1,330,778.70-1,996,168.05-489,221.10

Finding the Fourth Proportional to 1,330,778.70, 1,996,168.05 and 489,221.10

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Solution

The fourth proportional to 1,330,778.70, 1,996,168.05 and 489,221.10 is: 733,831.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,778.70 : 1,996,168.05 = 489,221.10 : x
  2. Step 2: Convert to fraction form
    1,330,778.70/1,996,168.05 = 489,221.10/x
  3. Step 3: Cross multiply
    1,330,778.70x = 1,996,168.05 × 489,221.10
  4. Step 4: Simplify right side
    1,330,778.70x = 976,567,529,205.86
  5. Step 5: Solve for x
    x = 976,567,529,205.86/1,330,778.70
  6. Step 6: Final answer
    x = 733,831.65

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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.