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Finding the Fourth Proportional to 665,302.60, 997,662.30 and 265,810.60

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Solution

The fourth proportional to 665,302.60, 997,662.30 and 265,810.60 is: 398,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,302.60 : 997,662.30 = 265,810.60 : x
  2. Step 2: Convert to fraction form
    665,302.60/997,662.30 = 265,810.60/x
  3. Step 3: Cross multiply
    665,302.60x = 997,662.30 × 265,810.60
  4. Step 4: Simplify right side
    665,302.60x = 265,189,214,560.38
  5. Step 5: Solve for x
    x = 265,189,214,560.38/665,302.60
  6. Step 6: Final answer
    x = 398,599.40

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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.