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Finding the Fourth Proportional to 863,504.80, 1,294,306.80 and 302,250.40

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Solution

The fourth proportional to 863,504.80, 1,294,306.80 and 302,250.40 is: 453,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,504.80 : 1,294,306.80 = 302,250.40 : x
  2. Step 2: Convert to fraction form
    863,504.80/1,294,306.80 = 302,250.40/x
  3. Step 3: Cross multiply
    863,504.80x = 1,294,306.80 × 302,250.40
  4. Step 4: Simplify right side
    863,504.80x = 391,204,748,022.72
  5. Step 5: Solve for x
    x = 391,204,748,022.72/863,504.80
  6. Step 6: Final answer
    x = 453,042.93

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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.