Home / 752,075.57-1,128,457.85-325,741.79

Finding the Fourth Proportional to 752,075.57, 1,128,457.85 and 325,741.79

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Solution

The fourth proportional to 752,075.57, 1,128,457.85 and 325,741.79 is: 488,761.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,075.57 : 1,128,457.85 = 325,741.79 : x
  2. Step 2: Convert to fraction form
    752,075.57/1,128,457.85 = 325,741.79/x
  3. Step 3: Cross multiply
    752,075.57x = 1,128,457.85 × 325,741.79
  4. Step 4: Simplify right side
    752,075.57x = 367,585,872,727.55
  5. Step 5: Solve for x
    x = 367,585,872,727.55/752,075.57
  6. Step 6: Final answer
    x = 488,761.89

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Double scale
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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.