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Finding the Fourth Proportional to 551,633.20, 827,012.40 and 302,315.20

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Solution

The fourth proportional to 551,633.20, 827,012.40 and 302,315.20 is: 453,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,633.20 : 827,012.40 = 302,315.20 : x
  2. Step 2: Convert to fraction form
    551,633.20/827,012.40 = 302,315.20/x
  3. Step 3: Cross multiply
    551,633.20x = 827,012.40 × 302,315.20
  4. Step 4: Simplify right side
    551,633.20x = 250,018,419,108.48
  5. Step 5: Solve for x
    x = 250,018,419,108.48/551,633.20
  6. Step 6: Final answer
    x = 453,233.09

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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.