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Finding the Fourth Proportional to 551,803.20, 827,267.40 and 302,485.20

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Solution

The fourth proportional to 551,803.20, 827,267.40 and 302,485.20 is: 453,488.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,803.20 : 827,267.40 = 302,485.20 : x
  2. Step 2: Convert to fraction form
    551,803.20/827,267.40 = 302,485.20/x
  3. Step 3: Cross multiply
    551,803.20x = 827,267.40 × 302,485.20
  4. Step 4: Simplify right side
    551,803.20x = 250,236,144,942.48
  5. Step 5: Solve for x
    x = 250,236,144,942.48/551,803.20
  6. Step 6: Final answer
    x = 453,488.03

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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.