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Finding the Fourth Proportional to 465,485.60, 698,228.40 and 276,528.80

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Solution

The fourth proportional to 465,485.60, 698,228.40 and 276,528.80 is: 414,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,485.60 : 698,228.40 = 276,528.80 : x
  2. Step 2: Convert to fraction form
    465,485.60/698,228.40 = 276,528.80/x
  3. Step 3: Cross multiply
    465,485.60x = 698,228.40 × 276,528.80
  4. Step 4: Simplify right side
    465,485.60x = 193,080,261,577.92
  5. Step 5: Solve for x
    x = 193,080,261,577.92/465,485.60
  6. Step 6: Final answer
    x = 414,793.20

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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.