Home / 1,085,965.40-1,629,725.70-455,331.80

Finding the Fourth Proportional to 1,085,965.40, 1,629,725.70 and 455,331.80

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Solution

The fourth proportional to 1,085,965.40, 1,629,725.70 and 455,331.80 is: 683,323.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,965.40 : 1,629,725.70 = 455,331.80 : x
  2. Step 2: Convert to fraction form
    1,085,965.40/1,629,725.70 = 455,331.80/x
  3. Step 3: Cross multiply
    1,085,965.40x = 1,629,725.70 × 455,331.80
  4. Step 4: Simplify right side
    1,085,965.40x = 742,065,936,487.26
  5. Step 5: Solve for x
    x = 742,065,936,487.26/1,085,965.40
  6. Step 6: Final answer
    x = 683,323.74

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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.