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Finding the Fourth Proportional to 453,737.79, 678,896.61 and 270,691.66

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Solution

The fourth proportional to 453,737.79, 678,896.61 and 270,691.66 is: 405,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,737.79 : 678,896.61 = 270,691.66 : x
  2. Step 2: Convert to fraction form
    453,737.79/678,896.61 = 270,691.66/x
  3. Step 3: Cross multiply
    453,737.79x = 678,896.61 × 270,691.66
  4. Step 4: Simplify right side
    453,737.79x = 183,771,650,329.27
  5. Step 5: Solve for x
    x = 183,771,650,329.27/453,737.79
  6. Step 6: Final answer
    x = 405,017.29

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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.