Home / 889,012.32-1,333,383.24-289,972.68

Finding the Fourth Proportional to 889,012.32, 1,333,383.24 and 289,972.68

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Solution

The fourth proportional to 889,012.32, 1,333,383.24 and 289,972.68 is: 434,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,012.32 : 1,333,383.24 = 289,972.68 : x
  2. Step 2: Convert to fraction form
    889,012.32/1,333,383.24 = 289,972.68/x
  3. Step 3: Cross multiply
    889,012.32x = 1,333,383.24 × 289,972.68
  4. Step 4: Simplify right side
    889,012.32x = 386,644,711,569.88
  5. Step 5: Solve for x
    x = 386,644,711,569.88/889,012.32
  6. Step 6: Final answer
    x = 434,914.91

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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.