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Finding the Fourth Proportional to 304,889.66, 455,159.36 and 284,628.42

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Solution

The fourth proportional to 304,889.66, 455,159.36 and 284,628.42 is: 424,912.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,889.66 : 455,159.36 = 284,628.42 : x
  2. Step 2: Convert to fraction form
    304,889.66/455,159.36 = 284,628.42/x
  3. Step 3: Cross multiply
    304,889.66x = 455,159.36 × 284,628.42
  4. Step 4: Simplify right side
    304,889.66x = 129,551,288,061.87
  5. Step 5: Solve for x
    x = 129,551,288,061.87/304,889.66
  6. Step 6: Final answer
    x = 424,912.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.