Home / 1,427,639.51-1,970,145.36-783,065.00

Finding the Fourth Proportional to 1,427,639.51, 1,970,145.36 and 783,065.00

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Solution

The fourth proportional to 1,427,639.51, 1,970,145.36 and 783,065.00 is: 1,080,631.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,639.51 : 1,970,145.36 = 783,065.00 : x
  2. Step 2: Convert to fraction form
    1,427,639.51/1,970,145.36 = 783,065.00/x
  3. Step 3: Cross multiply
    1,427,639.51x = 1,970,145.36 × 783,065.00
  4. Step 4: Simplify right side
    1,427,639.51x = 1,542,751,866,477.67
  5. Step 5: Solve for x
    x = 1,542,751,866,477.67/1,427,639.51
  6. Step 6: Final answer
    x = 1,080,631.25

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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.