Home / 1,299,386.80-1,949,412.41-540,976.21

Finding the Fourth Proportional to 1,299,386.80, 1,949,412.41 and 540,976.21

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Solution

The fourth proportional to 1,299,386.80, 1,949,412.41 and 540,976.21 is: 811,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,386.80 : 1,949,412.41 = 540,976.21 : x
  2. Step 2: Convert to fraction form
    1,299,386.80/1,949,412.41 = 540,976.21/x
  3. Step 3: Cross multiply
    1,299,386.80x = 1,949,412.41 × 540,976.21
  4. Step 4: Simplify right side
    1,299,386.80x = 1,054,585,728,236.91
  5. Step 5: Solve for x
    x = 1,054,585,728,236.91/1,299,386.80
  6. Step 6: Final answer
    x = 811,602.62

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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.