Home / 1,143,450.50-1,712,888.70-687,790.12

Finding the Fourth Proportional to 1,143,450.50, 1,712,888.70 and 687,790.12

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Solution

The fourth proportional to 1,143,450.50, 1,712,888.70 and 687,790.12 is: 1,030,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,450.50 : 1,712,888.70 = 687,790.12 : x
  2. Step 2: Convert to fraction form
    1,143,450.50/1,712,888.70 = 687,790.12/x
  3. Step 3: Cross multiply
    1,143,450.50x = 1,712,888.70 × 687,790.12
  4. Step 4: Simplify right side
    1,143,450.50x = 1,178,107,924,519.64
  5. Step 5: Solve for x
    x = 1,178,107,924,519.64/1,143,450.50
  6. Step 6: Final answer
    x = 1,030,309.51

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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.