Home / 551,091.20-826,636.80-545,842.40

Finding the Fourth Proportional to 551,091.20, 826,636.80 and 545,842.40

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Solution

The fourth proportional to 551,091.20, 826,636.80 and 545,842.40 is: 818,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,091.20 : 826,636.80 = 545,842.40 : x
  2. Step 2: Convert to fraction form
    551,091.20/826,636.80 = 545,842.40/x
  3. Step 3: Cross multiply
    551,091.20x = 826,636.80 × 545,842.40
  4. Step 4: Simplify right side
    551,091.20x = 451,213,414,840.32
  5. Step 5: Solve for x
    x = 451,213,414,840.32/551,091.20
  6. Step 6: Final answer
    x = 818,763.60

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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.