Home / 863,493.80-1,294,851.90-389,935.40

Finding the Fourth Proportional to 863,493.80, 1,294,851.90 and 389,935.40

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Solution

The fourth proportional to 863,493.80, 1,294,851.90 and 389,935.40 is: 584,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,493.80 : 1,294,851.90 = 389,935.40 : x
  2. Step 2: Convert to fraction form
    863,493.80/1,294,851.90 = 389,935.40/x
  3. Step 3: Cross multiply
    863,493.80x = 1,294,851.90 × 389,935.40
  4. Step 4: Simplify right side
    863,493.80x = 504,908,593,567.26
  5. Step 5: Solve for x
    x = 504,908,593,567.26/863,493.80
  6. Step 6: Final answer
    x = 584,727.53

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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.