Home / 999,446.28-1,379,231.74-540,561.36

Finding the Fourth Proportional to 999,446.28, 1,379,231.74 and 540,561.36

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Solution

The fourth proportional to 999,446.28, 1,379,231.74 and 540,561.36 is: 745,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,446.28 : 1,379,231.74 = 540,561.36 : x
  2. Step 2: Convert to fraction form
    999,446.28/1,379,231.74 = 540,561.36/x
  3. Step 3: Cross multiply
    999,446.28x = 1,379,231.74 × 540,561.36
  4. Step 4: Simplify right side
    999,446.28x = 745,559,385,129.57
  5. Step 5: Solve for x
    x = 745,559,385,129.57/999,446.28
  6. Step 6: Final answer
    x = 745,972.44

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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.