Home / 828,751.52-1,243,791.58-429,506.43

Finding the Fourth Proportional to 828,751.52, 1,243,791.58 and 429,506.43

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Solution

The fourth proportional to 828,751.52, 1,243,791.58 and 429,506.43 is: 644,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,751.52 : 1,243,791.58 = 429,506.43 : x
  2. Step 2: Convert to fraction form
    828,751.52/1,243,791.58 = 429,506.43/x
  3. Step 3: Cross multiply
    828,751.52x = 1,243,791.58 × 429,506.43
  4. Step 4: Simplify right side
    828,751.52x = 534,216,481,189.86
  5. Step 5: Solve for x
    x = 534,216,481,189.86/828,751.52
  6. Step 6: Final answer
    x = 644,603.92

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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.