Home / 551,081.20-826,621.80-545,832.40

Finding the Fourth Proportional to 551,081.20, 826,621.80 and 545,832.40

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Solution

The fourth proportional to 551,081.20, 826,621.80 and 545,832.40 is: 818,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,081.20 : 826,621.80 = 545,832.40 : x
  2. Step 2: Convert to fraction form
    551,081.20/826,621.80 = 545,832.40/x
  3. Step 3: Cross multiply
    551,081.20x = 826,621.80 × 545,832.40
  4. Step 4: Simplify right side
    551,081.20x = 451,196,960,986.32
  5. Step 5: Solve for x
    x = 451,196,960,986.32/551,081.20
  6. Step 6: Final answer
    x = 818,748.60

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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.