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Finding the Fourth Proportional to 284,559.80, 426,861.30 and 84,864.56

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Solution

The fourth proportional to 284,559.80, 426,861.30 and 84,864.56 is: 127,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,559.80 : 426,861.30 = 84,864.56 : x
  2. Step 2: Convert to fraction form
    284,559.80/426,861.30 = 84,864.56/x
  3. Step 3: Cross multiply
    284,559.80x = 426,861.30 × 84,864.56
  4. Step 4: Simplify right side
    284,559.80x = 36,225,396,405.53
  5. Step 5: Solve for x
    x = 36,225,396,405.53/284,559.80
  6. Step 6: Final answer
    x = 127,303.28

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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.