Home / 1,285,040.40-1,925,717.40-945,430.80

Finding the Fourth Proportional to 1,285,040.40, 1,925,717.40 and 945,430.80

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Solution

The fourth proportional to 1,285,040.40, 1,925,717.40 and 945,430.80 is: 1,416,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,040.40 : 1,925,717.40 = 945,430.80 : x
  2. Step 2: Convert to fraction form
    1,285,040.40/1,925,717.40 = 945,430.80/x
  3. Step 3: Cross multiply
    1,285,040.40x = 1,925,717.40 × 945,430.80
  4. Step 4: Simplify right side
    1,285,040.40x = 1,820,632,542,055.92
  5. Step 5: Solve for x
    x = 1,820,632,542,055.92/1,285,040.40
  6. Step 6: Final answer
    x = 1,416,790.12

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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.