Home / 1,072,180.21-1,607,913.50-432,318.68

Finding the Fourth Proportional to 1,072,180.21, 1,607,913.50 and 432,318.68

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Solution

The fourth proportional to 1,072,180.21, 1,607,913.50 and 432,318.68 is: 648,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,180.21 : 1,607,913.50 = 432,318.68 : x
  2. Step 2: Convert to fraction form
    1,072,180.21/1,607,913.50 = 432,318.68/x
  3. Step 3: Cross multiply
    1,072,180.21x = 1,607,913.50 × 432,318.68
  4. Step 4: Simplify right side
    1,072,180.21x = 695,131,043,732.37
  5. Step 5: Solve for x
    x = 695,131,043,732.37/1,072,180.21
  6. Step 6: Final answer
    x = 648,334.15

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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.