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Finding the Fourth Proportional to 648,359.92, 894,700.29 and 361,898.47

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Solution

The fourth proportional to 648,359.92, 894,700.29 and 361,898.47 is: 499,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,359.92 : 894,700.29 = 361,898.47 : x
  2. Step 2: Convert to fraction form
    648,359.92/894,700.29 = 361,898.47/x
  3. Step 3: Cross multiply
    648,359.92x = 894,700.29 × 361,898.47
  4. Step 4: Simplify right side
    648,359.92x = 323,790,666,059.56
  5. Step 5: Solve for x
    x = 323,790,666,059.56/648,359.92
  6. Step 6: Final answer
    x = 499,399.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.