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Finding the Fourth Proportional to 608,829.68, 839,817.60 and 402,099.32

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Solution

The fourth proportional to 608,829.68, 839,817.60 and 402,099.32 is: 554,654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,829.68 : 839,817.60 = 402,099.32 : x
  2. Step 2: Convert to fraction form
    608,829.68/839,817.60 = 402,099.32/x
  3. Step 3: Cross multiply
    608,829.68x = 839,817.60 × 402,099.32
  4. Step 4: Simplify right side
    608,829.68x = 337,690,085,884.03
  5. Step 5: Solve for x
    x = 337,690,085,884.03/608,829.68
  6. Step 6: Final answer
    x = 554,654.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.