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Finding the Fourth Proportional to 889,310.24, 1,334,684.64 and 689,156

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Solution

The fourth proportional to 889,310.24, 1,334,684.64 and 689,156 is: 1,034,291.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,310.24 : 1,334,684.64 = 689,156 : x
  2. Step 2: Convert to fraction form
    889,310.24/1,334,684.64 = 689,156/x
  3. Step 3: Cross multiply
    889,310.24x = 1,334,684.64 × 689,156
  4. Step 4: Simplify right side
    889,310.24x = 919,805,927,763.84
  5. Step 5: Solve for x
    x = 919,805,927,763.84/889,310.24
  6. Step 6: Final answer
    x = 1,034,291.39

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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.