Home / 1,313,001.67-1,811,940.55-709,389.67

Finding the Fourth Proportional to 1,313,001.67, 1,811,940.55 and 709,389.67

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Solution

The fourth proportional to 1,313,001.67, 1,811,940.55 and 709,389.67 is: 978,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,001.67 : 1,811,940.55 = 709,389.67 : x
  2. Step 2: Convert to fraction form
    1,313,001.67/1,811,940.55 = 709,389.67/x
  3. Step 3: Cross multiply
    1,313,001.67x = 1,811,940.55 × 709,389.67
  4. Step 4: Simplify right side
    1,313,001.67x = 1,285,371,902,520.79
  5. Step 5: Solve for x
    x = 1,285,371,902,520.79/1,313,001.67
  6. Step 6: Final answer
    x = 978,956.79

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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.