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Finding the Fourth Proportional to 520,893.02, 785,243.69 and 486,172.94

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Solution

The fourth proportional to 520,893.02, 785,243.69 and 486,172.94 is: 732,903.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,893.02 : 785,243.69 = 486,172.94 : x
  2. Step 2: Convert to fraction form
    520,893.02/785,243.69 = 486,172.94/x
  3. Step 3: Cross multiply
    520,893.02x = 785,243.69 × 486,172.94
  4. Step 4: Simplify right side
    520,893.02x = 381,764,233,383.75
  5. Step 5: Solve for x
    x = 381,764,233,383.75/520,893.02
  6. Step 6: Final answer
    x = 732,903.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.