Home / 928,934.82-1,282,032.45-521,076.42

Finding the Fourth Proportional to 928,934.82, 1,282,032.45 and 521,076.42

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Solution

The fourth proportional to 928,934.82, 1,282,032.45 and 521,076.42 is: 719,142.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,934.82 : 1,282,032.45 = 521,076.42 : x
  2. Step 2: Convert to fraction form
    928,934.82/1,282,032.45 = 521,076.42/x
  3. Step 3: Cross multiply
    928,934.82x = 1,282,032.45 × 521,076.42
  4. Step 4: Simplify right side
    928,934.82x = 668,036,879,369.83
  5. Step 5: Solve for x
    x = 668,036,879,369.83/928,934.82
  6. Step 6: Final answer
    x = 719,142.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.