Home / 812,174.40-1,218,025.08-243,532.80

Finding the Fourth Proportional to 812,174.40, 1,218,025.08 and 243,532.80

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Solution

The fourth proportional to 812,174.40, 1,218,025.08 and 243,532.80 is: 365,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,174.40 : 1,218,025.08 = 243,532.80 : x
  2. Step 2: Convert to fraction form
    812,174.40/1,218,025.08 = 243,532.80/x
  3. Step 3: Cross multiply
    812,174.40x = 1,218,025.08 × 243,532.80
  4. Step 4: Simplify right side
    812,174.40x = 296,629,058,202.62
  5. Step 5: Solve for x
    x = 296,629,058,202.62/812,174.40
  6. Step 6: Final answer
    x = 365,228.28

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1.5x scale

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.