Home / 1,131,063.62-1,560,905.80-665,833.55

Finding the Fourth Proportional to 1,131,063.62, 1,560,905.80 and 665,833.55

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Solution

The fourth proportional to 1,131,063.62, 1,560,905.80 and 665,833.55 is: 918,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,063.62 : 1,560,905.80 = 665,833.55 : x
  2. Step 2: Convert to fraction form
    1,131,063.62/1,560,905.80 = 665,833.55/x
  3. Step 3: Cross multiply
    1,131,063.62x = 1,560,905.80 × 665,833.55
  4. Step 4: Simplify right side
    1,131,063.62x = 1,039,303,440,560.48
  5. Step 5: Solve for x
    x = 1,039,303,440,560.48/1,131,063.62
  6. Step 6: Final answer
    x = 918,872.67

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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.