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Finding the Fourth Proportional to 452,502.40, 678,901.23 and 215,814.34

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Solution

The fourth proportional to 452,502.40, 678,901.23 and 215,814.34 is: 323,791.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,502.40 : 678,901.23 = 215,814.34 : x
  2. Step 2: Convert to fraction form
    452,502.40/678,901.23 = 215,814.34/x
  3. Step 3: Cross multiply
    452,502.40x = 678,901.23 × 215,814.34
  4. Step 4: Simplify right side
    452,502.40x = 146,516,620,877.64
  5. Step 5: Solve for x
    x = 146,516,620,877.64/452,502.40
  6. Step 6: Final answer
    x = 323,791.92

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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.