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Finding the Fourth Proportional to 453,990.90, 680,986.35 and 294,558.60

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Solution

The fourth proportional to 453,990.90, 680,986.35 and 294,558.60 is: 441,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,990.90 : 680,986.35 = 294,558.60 : x
  2. Step 2: Convert to fraction form
    453,990.90/680,986.35 = 294,558.60/x
  3. Step 3: Cross multiply
    453,990.90x = 680,986.35 × 294,558.60
  4. Step 4: Simplify right side
    453,990.90x = 200,590,385,875.11
  5. Step 5: Solve for x
    x = 200,590,385,875.11/453,990.90
  6. Step 6: Final answer
    x = 441,837.90

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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.