Home / 728,196.10-1,091,966.10-278,767.60

Finding the Fourth Proportional to 728,196.10, 1,091,966.10 and 278,767.60

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Solution

The fourth proportional to 728,196.10, 1,091,966.10 and 278,767.60 is: 418,025.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,196.10 : 1,091,966.10 = 278,767.60 : x
  2. Step 2: Convert to fraction form
    728,196.10/1,091,966.10 = 278,767.60/x
  3. Step 3: Cross multiply
    728,196.10x = 1,091,966.10 × 278,767.60
  4. Step 4: Simplify right side
    728,196.10x = 304,404,768,978.36
  5. Step 5: Solve for x
    x = 304,404,768,978.36/728,196.10
  6. Step 6: Final answer
    x = 418,025.82

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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.