Home / 889,455.30-1,333,722.15-328,200.90

Finding the Fourth Proportional to 889,455.30, 1,333,722.15 and 328,200.90

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Solution

The fourth proportional to 889,455.30, 1,333,722.15 and 328,200.90 is: 492,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,455.30 : 1,333,722.15 = 328,200.90 : x
  2. Step 2: Convert to fraction form
    889,455.30/1,333,722.15 = 328,200.90/x
  3. Step 3: Cross multiply
    889,455.30x = 1,333,722.15 × 328,200.90
  4. Step 4: Simplify right side
    889,455.30x = 437,728,809,979.94
  5. Step 5: Solve for x
    x = 437,728,809,979.94/889,455.30
  6. Step 6: Final answer
    x = 492,131.32

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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.