Home / 1,219,697.92-1,829,792.24-421,010.40

Finding the Fourth Proportional to 1,219,697.92, 1,829,792.24 and 421,010.40

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Solution

The fourth proportional to 1,219,697.92, 1,829,792.24 and 421,010.40 is: 631,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,697.92 : 1,829,792.24 = 421,010.40 : x
  2. Step 2: Convert to fraction form
    1,219,697.92/1,829,792.24 = 421,010.40/x
  3. Step 3: Cross multiply
    1,219,697.92x = 1,829,792.24 × 421,010.40
  4. Step 4: Simplify right side
    1,219,697.92x = 770,361,562,879.30
  5. Step 5: Solve for x
    x = 770,361,562,879.30/1,219,697.92
  6. Step 6: Final answer
    x = 631,600.29

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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.