Home / 889,880.87-1,228,032.65-481,981.68

Finding the Fourth Proportional to 889,880.87, 1,228,032.65 and 481,981.68

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Solution

The fourth proportional to 889,880.87, 1,228,032.65 and 481,981.68 is: 665,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,880.87 : 1,228,032.65 = 481,981.68 : x
  2. Step 2: Convert to fraction form
    889,880.87/1,228,032.65 = 481,981.68/x
  3. Step 3: Cross multiply
    889,880.87x = 1,228,032.65 × 481,981.68
  4. Step 4: Simplify right side
    889,880.87x = 591,889,237,331.94
  5. Step 5: Solve for x
    x = 591,889,237,331.94/889,880.87
  6. Step 6: Final answer
    x = 665,133.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.