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Finding the Fourth Proportional to 551,817.20, 827,288.40 and 302,499.20

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Solution

The fourth proportional to 551,817.20, 827,288.40 and 302,499.20 is: 453,509.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,817.20 : 827,288.40 = 302,499.20 : x
  2. Step 2: Convert to fraction form
    551,817.20/827,288.40 = 302,499.20/x
  3. Step 3: Cross multiply
    551,817.20x = 827,288.40 × 302,499.20
  4. Step 4: Simplify right side
    551,817.20x = 250,254,079,169.28
  5. Step 5: Solve for x
    x = 250,254,079,169.28/551,817.20
  6. Step 6: Final answer
    x = 453,509.02

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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.