Home / 1,312,566-1,811,342.36-708,954

Finding the Fourth Proportional to 1,312,566, 1,811,342.36 and 708,954

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Solution

The fourth proportional to 1,312,566, 1,811,342.36 and 708,954 is: 978,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,566 : 1,811,342.36 = 708,954 : x
  2. Step 2: Convert to fraction form
    1,312,566/1,811,342.36 = 708,954/x
  3. Step 3: Cross multiply
    1,312,566x = 1,811,342.36 × 708,954
  4. Step 4: Simplify right side
    1,312,566x = 1,284,158,411,491.44
  5. Step 5: Solve for x
    x = 1,284,158,411,491.44/1,312,566
  6. Step 6: Final answer
    x = 978,357.21

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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.