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Finding the Fourth Proportional to 618,056.73, 931,296.51 and 508,197.96

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Solution

The fourth proportional to 618,056.73, 931,296.51 and 508,197.96 is: 765,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,056.73 : 931,296.51 = 508,197.96 : x
  2. Step 2: Convert to fraction form
    618,056.73/931,296.51 = 508,197.96/x
  3. Step 3: Cross multiply
    618,056.73x = 931,296.51 × 508,197.96
  4. Step 4: Simplify right side
    618,056.73x = 473,282,986,537.12
  5. Step 5: Solve for x
    x = 473,282,986,537.12/618,056.73
  6. Step 6: Final answer
    x = 765,759.78

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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.