Home / 551,078.20-826,617.30-545,829.40

Finding the Fourth Proportional to 551,078.20, 826,617.30 and 545,829.40

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Solution

The fourth proportional to 551,078.20, 826,617.30 and 545,829.40 is: 818,744.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,078.20 : 826,617.30 = 545,829.40 : x
  2. Step 2: Convert to fraction form
    551,078.20/826,617.30 = 545,829.40/x
  3. Step 3: Cross multiply
    551,078.20x = 826,617.30 × 545,829.40
  4. Step 4: Simplify right side
    551,078.20x = 451,192,024,888.62
  5. Step 5: Solve for x
    x = 451,192,024,888.62/551,078.20
  6. Step 6: Final answer
    x = 818,744.10

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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.