Home / 1,915,456.28-2,643,210.10-1,056,016.54

Finding the Fourth Proportional to 1,915,456.28, 2,643,210.10 and 1,056,016.54

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Solution

The fourth proportional to 1,915,456.28, 2,643,210.10 and 1,056,016.54 is: 1,457,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,456.28 : 2,643,210.10 = 1,056,016.54 : x
  2. Step 2: Convert to fraction form
    1,915,456.28/2,643,210.10 = 1,056,016.54/x
  3. Step 3: Cross multiply
    1,915,456.28x = 2,643,210.10 × 1,056,016.54
  4. Step 4: Simplify right side
    1,915,456.28x = 2,791,273,579,014.97
  5. Step 5: Solve for x
    x = 2,791,273,579,014.97/1,915,456.28
  6. Step 6: Final answer
    x = 1,457,236.90

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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.