Home / 551,086.20-826,629.30-545,837.40

Finding the Fourth Proportional to 551,086.20, 826,629.30 and 545,837.40

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Solution

The fourth proportional to 551,086.20, 826,629.30 and 545,837.40 is: 818,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,086.20 : 826,629.30 = 545,837.40 : x
  2. Step 2: Convert to fraction form
    551,086.20/826,629.30 = 545,837.40/x
  3. Step 3: Cross multiply
    551,086.20x = 826,629.30 × 545,837.40
  4. Step 4: Simplify right side
    551,086.20x = 451,205,187,875.82
  5. Step 5: Solve for x
    x = 451,205,187,875.82/551,086.20
  6. Step 6: Final answer
    x = 818,756.10

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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.