Home / 1,282,078.13-1,923,218.33-429,154.79

Finding the Fourth Proportional to 1,282,078.13, 1,923,218.33 and 429,154.79

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Solution

The fourth proportional to 1,282,078.13, 1,923,218.33 and 429,154.79 is: 643,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,078.13 : 1,923,218.33 = 429,154.79 : x
  2. Step 2: Convert to fraction form
    1,282,078.13/1,923,218.33 = 429,154.79/x
  3. Step 3: Cross multiply
    1,282,078.13x = 1,923,218.33 × 429,154.79
  4. Step 4: Simplify right side
    1,282,078.13x = 825,358,346,773.44
  5. Step 5: Solve for x
    x = 825,358,346,773.44/1,282,078.13
  6. Step 6: Final answer
    x = 643,766.03

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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.