Home / 402,664.80-603,997.20-216,040.80

Finding the Fourth Proportional to 402,664.80, 603,997.20 and 216,040.80

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Solution

The fourth proportional to 402,664.80, 603,997.20 and 216,040.80 is: 324,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,664.80 : 603,997.20 = 216,040.80 : x
  2. Step 2: Convert to fraction form
    402,664.80/603,997.20 = 216,040.80/x
  3. Step 3: Cross multiply
    402,664.80x = 603,997.20 × 216,040.80
  4. Step 4: Simplify right side
    402,664.80x = 130,488,038,285.76
  5. Step 5: Solve for x
    x = 130,488,038,285.76/402,664.80
  6. Step 6: Final answer
    x = 324,061.20

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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.