Home / 721,180.80-1,082,201.76-384,471.36

Finding the Fourth Proportional to 721,180.80, 1,082,201.76 and 384,471.36

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Solution

The fourth proportional to 721,180.80, 1,082,201.76 and 384,471.36 is: 576,936.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,180.80 : 1,082,201.76 = 384,471.36 : x
  2. Step 2: Convert to fraction form
    721,180.80/1,082,201.76 = 384,471.36/x
  3. Step 3: Cross multiply
    721,180.80x = 1,082,201.76 × 384,471.36
  4. Step 4: Simplify right side
    721,180.80x = 416,075,582,461.59
  5. Step 5: Solve for x
    x = 416,075,582,461.59/721,180.80
  6. Step 6: Final answer
    x = 576,936.58

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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.