Home / 1,915,388.64-2,643,187.68-1,055,928.96

Finding the Fourth Proportional to 1,915,388.64, 2,643,187.68 and 1,055,928.96

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Solution

The fourth proportional to 1,915,388.64, 2,643,187.68 and 1,055,928.96 is: 1,457,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,388.64 : 2,643,187.68 = 1,055,928.96 : x
  2. Step 2: Convert to fraction form
    1,915,388.64/2,643,187.68 = 1,055,928.96/x
  3. Step 3: Cross multiply
    1,915,388.64x = 2,643,187.68 × 1,055,928.96
  4. Step 4: Simplify right side
    1,915,388.64x = 2,791,018,418,027.21
  5. Step 5: Solve for x
    x = 2,791,018,418,027.21/1,915,388.64
  6. Step 6: Final answer
    x = 1,457,155.15

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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.