Home / 1,309,597.89-1,807,231.95-728,811.29

Finding the Fourth Proportional to 1,309,597.89, 1,807,231.95 and 728,811.29

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Solution

The fourth proportional to 1,309,597.89, 1,807,231.95 and 728,811.29 is: 1,005,752.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,597.89 : 1,807,231.95 = 728,811.29 : x
  2. Step 2: Convert to fraction form
    1,309,597.89/1,807,231.95 = 728,811.29/x
  3. Step 3: Cross multiply
    1,309,597.89x = 1,807,231.95 × 728,811.29
  4. Step 4: Simplify right side
    1,309,597.89x = 1,317,131,048,808.72
  5. Step 5: Solve for x
    x = 1,317,131,048,808.72/1,309,597.89
  6. Step 6: Final answer
    x = 1,005,752.27

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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.