Home / 1,330,020.84-1,995,311.61-431,392.67

Finding the Fourth Proportional to 1,330,020.84, 1,995,311.61 and 431,392.67

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Solution

The fourth proportional to 1,330,020.84, 1,995,311.61 and 431,392.67 is: 647,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,020.84 : 1,995,311.61 = 431,392.67 : x
  2. Step 2: Convert to fraction form
    1,330,020.84/1,995,311.61 = 431,392.67/x
  3. Step 3: Cross multiply
    1,330,020.84x = 1,995,311.61 × 431,392.67
  4. Step 4: Simplify right side
    1,330,020.84x = 860,762,792,943.34
  5. Step 5: Solve for x
    x = 860,762,792,943.34/1,330,020.84
  6. Step 6: Final answer
    x = 647,179.93

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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.