Home / 780,915.15-1,171,664.33-307,930.23

Finding the Fourth Proportional to 780,915.15, 1,171,664.33 and 307,930.23

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Solution

The fourth proportional to 780,915.15, 1,171,664.33 and 307,930.23 is: 462,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,915.15 : 1,171,664.33 = 307,930.23 : x
  2. Step 2: Convert to fraction form
    780,915.15/1,171,664.33 = 307,930.23/x
  3. Step 3: Cross multiply
    780,915.15x = 1,171,664.33 × 307,930.23
  4. Step 4: Simplify right side
    780,915.15x = 360,790,865,080.05
  5. Step 5: Solve for x
    x = 360,790,865,080.05/780,915.15
  6. Step 6: Final answer
    x = 462,010.33

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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.