Home / 889,307.15-1,333,963.88-215,388.90

Finding the Fourth Proportional to 889,307.15, 1,333,963.88 and 215,388.90

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Solution

The fourth proportional to 889,307.15, 1,333,963.88 and 215,388.90 is: 323,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,307.15 : 1,333,963.88 = 215,388.90 : x
  2. Step 2: Convert to fraction form
    889,307.15/1,333,963.88 = 215,388.90/x
  3. Step 3: Cross multiply
    889,307.15x = 1,333,963.88 × 215,388.90
  4. Step 4: Simplify right side
    889,307.15x = 287,321,012,752.93
  5. Step 5: Solve for x
    x = 287,321,012,752.93/889,307.15
  6. Step 6: Final answer
    x = 323,084.11

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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.