Home / 813,048.30-1,219,572.45-252,009.90

Finding the Fourth Proportional to 813,048.30, 1,219,572.45 and 252,009.90

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Solution

The fourth proportional to 813,048.30, 1,219,572.45 and 252,009.90 is: 378,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,048.30 : 1,219,572.45 = 252,009.90 : x
  2. Step 2: Convert to fraction form
    813,048.30/1,219,572.45 = 252,009.90/x
  3. Step 3: Cross multiply
    813,048.30x = 1,219,572.45 × 252,009.90
  4. Step 4: Simplify right side
    813,048.30x = 307,344,331,167.26
  5. Step 5: Solve for x
    x = 307,344,331,167.26/813,048.30
  6. Step 6: Final answer
    x = 378,014.85

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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.