Home / 810,010.40-1,213,703.40-691,912.40

Finding the Fourth Proportional to 810,010.40, 1,213,703.40 and 691,912.40

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Solution

The fourth proportional to 810,010.40, 1,213,703.40 and 691,912.40 is: 1,036,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,010.40 : 1,213,703.40 = 691,912.40 : x
  2. Step 2: Convert to fraction form
    810,010.40/1,213,703.40 = 691,912.40/x
  3. Step 3: Cross multiply
    810,010.40x = 1,213,703.40 × 691,912.40
  4. Step 4: Simplify right side
    810,010.40x = 839,776,432,382.16
  5. Step 5: Solve for x
    x = 839,776,432,382.16/810,010.40
  6. Step 6: Final answer
    x = 1,036,747.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.