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Finding the Fourth Proportional to 608,763.60, 913,145.40 and 328,827.60

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Solution

The fourth proportional to 608,763.60, 913,145.40 and 328,827.60 is: 493,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,763.60 : 913,145.40 = 328,827.60 : x
  2. Step 2: Convert to fraction form
    608,763.60/913,145.40 = 328,827.60/x
  3. Step 3: Cross multiply
    608,763.60x = 913,145.40 × 328,827.60
  4. Step 4: Simplify right side
    608,763.60x = 300,267,410,333.04
  5. Step 5: Solve for x
    x = 300,267,410,333.04/608,763.60
  6. Step 6: Final answer
    x = 493,241.40

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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.