Home / 774,664.64-1,068,952.31-447,928.20

Finding the Fourth Proportional to 774,664.64, 1,068,952.31 and 447,928.20

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Solution

The fourth proportional to 774,664.64, 1,068,952.31 and 447,928.20 is: 618,091.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,664.64 : 1,068,952.31 = 447,928.20 : x
  2. Step 2: Convert to fraction form
    774,664.64/1,068,952.31 = 447,928.20/x
  3. Step 3: Cross multiply
    774,664.64x = 1,068,952.31 × 447,928.20
  4. Step 4: Simplify right side
    774,664.64x = 478,813,884,104.14
  5. Step 5: Solve for x
    x = 478,813,884,104.14/774,664.64
  6. Step 6: Final answer
    x = 618,091.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.