Home / 1,089,785.75-1,634,687.73-379,812.65

Finding the Fourth Proportional to 1,089,785.75, 1,634,687.73 and 379,812.65

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Solution

The fourth proportional to 1,089,785.75, 1,634,687.73 and 379,812.65 is: 569,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,785.75 : 1,634,687.73 = 379,812.65 : x
  2. Step 2: Convert to fraction form
    1,089,785.75/1,634,687.73 = 379,812.65/x
  3. Step 3: Cross multiply
    1,089,785.75x = 1,634,687.73 × 379,812.65
  4. Step 4: Simplify right side
    1,089,785.75x = 620,875,070,480.35
  5. Step 5: Solve for x
    x = 620,875,070,480.35/1,089,785.75
  6. Step 6: Final answer
    x = 569,722.14

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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.