Home / 770,399.97-1,154,973.60-321,455.22

Finding the Fourth Proportional to 770,399.97, 1,154,973.60 and 321,455.22

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Solution

The fourth proportional to 770,399.97, 1,154,973.60 and 321,455.22 is: 481,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,399.97 : 1,154,973.60 = 321,455.22 : x
  2. Step 2: Convert to fraction form
    770,399.97/1,154,973.60 = 321,455.22/x
  3. Step 3: Cross multiply
    770,399.97x = 1,154,973.60 × 321,455.22
  4. Step 4: Simplify right side
    770,399.97x = 371,272,292,682.19
  5. Step 5: Solve for x
    x = 371,272,292,682.19/770,399.97
  6. Step 6: Final answer
    x = 481,921.48

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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.