Home / 1,421,388.29-2,131,475.53-822,762.65

Finding the Fourth Proportional to 1,421,388.29, 2,131,475.53 and 822,762.65

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Solution

The fourth proportional to 1,421,388.29, 2,131,475.53 and 822,762.65 is: 1,233,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,388.29 : 2,131,475.53 = 822,762.65 : x
  2. Step 2: Convert to fraction form
    1,421,388.29/2,131,475.53 = 822,762.65/x
  3. Step 3: Cross multiply
    1,421,388.29x = 2,131,475.53 × 822,762.65
  4. Step 4: Simplify right side
    1,421,388.29x = 1,753,698,455,472.95
  5. Step 5: Solve for x
    x = 1,753,698,455,472.95/1,421,388.29
  6. Step 6: Final answer
    x = 1,233,792.67

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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.