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Finding the Fourth Proportional to 551,324.20, 826,986.30 and 546,658.60

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Solution

The fourth proportional to 551,324.20, 826,986.30 and 546,658.60 is: 819,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,324.20 : 826,986.30 = 546,658.60 : x
  2. Step 2: Convert to fraction form
    551,324.20/826,986.30 = 546,658.60/x
  3. Step 3: Cross multiply
    551,324.20x = 826,986.30 × 546,658.60
  4. Step 4: Simplify right side
    551,324.20x = 452,079,172,977.18
  5. Step 5: Solve for x
    x = 452,079,172,977.18/551,324.20
  6. Step 6: Final answer
    x = 819,987.90

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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.