Home / 828,947.76-1,241,794.50-429,849.42

Finding the Fourth Proportional to 828,947.76, 1,241,794.50 and 429,849.42

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Solution

The fourth proportional to 828,947.76, 1,241,794.50 and 429,849.42 is: 643,930.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,947.76 : 1,241,794.50 = 429,849.42 : x
  2. Step 2: Convert to fraction form
    828,947.76/1,241,794.50 = 429,849.42/x
  3. Step 3: Cross multiply
    828,947.76x = 1,241,794.50 × 429,849.42
  4. Step 4: Simplify right side
    828,947.76x = 533,784,645,584.19
  5. Step 5: Solve for x
    x = 533,784,645,584.19/828,947.76
  6. Step 6: Final answer
    x = 643,930.38

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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.