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Finding the Fourth Proportional to 524,760.80, 788,890.80 and 447,778.40

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Solution

The fourth proportional to 524,760.80, 788,890.80 and 447,778.40 is: 673,160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,760.80 : 788,890.80 = 447,778.40 : x
  2. Step 2: Convert to fraction form
    524,760.80/788,890.80 = 447,778.40/x
  3. Step 3: Cross multiply
    524,760.80x = 788,890.80 × 447,778.40
  4. Step 4: Simplify right side
    524,760.80x = 353,248,260,198.72
  5. Step 5: Solve for x
    x = 353,248,260,198.72/524,760.80
  6. Step 6: Final answer
    x = 673,160.53

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1.5x scale

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.