Home / 1,915,660.53-2,643,730.65-1,056,219.48

Finding the Fourth Proportional to 1,915,660.53, 2,643,730.65 and 1,056,219.48

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Solution

The fourth proportional to 1,915,660.53, 2,643,730.65 and 1,056,219.48 is: 1,457,648.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,660.53 : 2,643,730.65 = 1,056,219.48 : x
  2. Step 2: Convert to fraction form
    1,915,660.53/2,643,730.65 = 1,056,219.48/x
  3. Step 3: Cross multiply
    1,915,660.53x = 2,643,730.65 × 1,056,219.48
  4. Step 4: Simplify right side
    1,915,660.53x = 2,792,359,812,403.06
  5. Step 5: Solve for x
    x = 2,792,359,812,403.06/1,915,660.53
  6. Step 6: Final answer
    x = 1,457,648.56

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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.