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Finding the Fourth Proportional to 654,490.13, 981,492.19 and 227,916.45

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Solution

The fourth proportional to 654,490.13, 981,492.19 and 227,916.45 is: 341,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,490.13 : 981,492.19 = 227,916.45 : x
  2. Step 2: Convert to fraction form
    654,490.13/981,492.19 = 227,916.45/x
  3. Step 3: Cross multiply
    654,490.13x = 981,492.19 × 227,916.45
  4. Step 4: Simplify right side
    654,490.13x = 223,698,215,077.73
  5. Step 5: Solve for x
    x = 223,698,215,077.73/654,490.13
  6. Step 6: Final answer
    x = 341,790.05

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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.