Home / 1,315,217.25-1,814,999.81-711,605.25

Finding the Fourth Proportional to 1,315,217.25, 1,814,999.81 and 711,605.25

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Solution

The fourth proportional to 1,315,217.25, 1,814,999.81 and 711,605.25 is: 982,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,217.25 : 1,814,999.81 = 711,605.25 : x
  2. Step 2: Convert to fraction form
    1,315,217.25/1,814,999.81 = 711,605.25/x
  3. Step 3: Cross multiply
    1,315,217.25x = 1,814,999.81 × 711,605.25
  4. Step 4: Simplify right side
    1,315,217.25x = 1,291,563,389,986.98
  5. Step 5: Solve for x
    x = 1,291,563,389,986.98/1,315,217.25
  6. Step 6: Final answer
    x = 982,015.25

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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.