Home / 774,287.82-1,160,979.72-300,419.64

Finding the Fourth Proportional to 774,287.82, 1,160,979.72 and 300,419.64

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Solution

The fourth proportional to 774,287.82, 1,160,979.72 and 300,419.64 is: 450,454.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,287.82 : 1,160,979.72 = 300,419.64 : x
  2. Step 2: Convert to fraction form
    774,287.82/1,160,979.72 = 300,419.64/x
  3. Step 3: Cross multiply
    774,287.82x = 1,160,979.72 × 300,419.64
  4. Step 4: Simplify right side
    774,287.82x = 348,781,109,529.70
  5. Step 5: Solve for x
    x = 348,781,109,529.70/774,287.82
  6. Step 6: Final answer
    x = 450,454.08

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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.