Home / 1,312,545.25-1,811,313.66-708,933.25

Finding the Fourth Proportional to 1,312,545.25, 1,811,313.66 and 708,933.25

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Solution

The fourth proportional to 1,312,545.25, 1,811,313.66 and 708,933.25 is: 978,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,545.25 : 1,811,313.66 = 708,933.25 : x
  2. Step 2: Convert to fraction form
    1,312,545.25/1,811,313.66 = 708,933.25/x
  3. Step 3: Cross multiply
    1,312,545.25x = 1,811,313.66 × 708,933.25
  4. Step 4: Simplify right side
    1,312,545.25x = 1,284,100,479,753.19
  5. Step 5: Solve for x
    x = 1,284,100,479,753.19/1,312,545.25
  6. Step 6: Final answer
    x = 978,328.54

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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.