Home / 685,334.80-1,028,002.20-448,944.40

Finding the Fourth Proportional to 685,334.80, 1,028,002.20 and 448,944.40

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Solution

The fourth proportional to 685,334.80, 1,028,002.20 and 448,944.40 is: 673,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,334.80 : 1,028,002.20 = 448,944.40 : x
  2. Step 2: Convert to fraction form
    685,334.80/1,028,002.20 = 448,944.40/x
  3. Step 3: Cross multiply
    685,334.80x = 1,028,002.20 × 448,944.40
  4. Step 4: Simplify right side
    685,334.80x = 461,515,830,877.68
  5. Step 5: Solve for x
    x = 461,515,830,877.68/685,334.80
  6. Step 6: Final answer
    x = 673,416.60

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Similar ratio
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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.