Home / 1,152,009.80-1,728,014.70-965,385.80

Finding the Fourth Proportional to 1,152,009.80, 1,728,014.70 and 965,385.80

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Solution

The fourth proportional to 1,152,009.80, 1,728,014.70 and 965,385.80 is: 1,448,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,009.80 : 1,728,014.70 = 965,385.80 : x
  2. Step 2: Convert to fraction form
    1,152,009.80/1,728,014.70 = 965,385.80/x
  3. Step 3: Cross multiply
    1,152,009.80x = 1,728,014.70 × 965,385.80
  4. Step 4: Simplify right side
    1,152,009.80x = 1,668,200,853,571.26
  5. Step 5: Solve for x
    x = 1,668,200,853,571.26/1,152,009.80
  6. Step 6: Final answer
    x = 1,448,078.70

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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.