Home / 809,876.40-1,214,123.40-572,472.24

Finding the Fourth Proportional to 809,876.40, 1,214,123.40 and 572,472.24

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Solution

The fourth proportional to 809,876.40, 1,214,123.40 and 572,472.24 is: 858,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,876.40 : 1,214,123.40 = 572,472.24 : x
  2. Step 2: Convert to fraction form
    809,876.40/1,214,123.40 = 572,472.24/x
  3. Step 3: Cross multiply
    809,876.40x = 1,214,123.40 × 572,472.24
  4. Step 4: Simplify right side
    809,876.40x = 695,051,942,434.42
  5. Step 5: Solve for x
    x = 695,051,942,434.42/809,876.40
  6. Step 6: Final answer
    x = 858,219.78

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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.