Home / 1,123,956.20-1,685,351.10-413,618.60

Finding the Fourth Proportional to 1,123,956.20, 1,685,351.10 and 413,618.60

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Solution

The fourth proportional to 1,123,956.20, 1,685,351.10 and 413,618.60 is: 620,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,956.20 : 1,685,351.10 = 413,618.60 : x
  2. Step 2: Convert to fraction form
    1,123,956.20/1,685,351.10 = 413,618.60/x
  3. Step 3: Cross multiply
    1,123,956.20x = 1,685,351.10 × 413,618.60
  4. Step 4: Simplify right side
    1,123,956.20x = 697,092,562,490.46
  5. Step 5: Solve for x
    x = 697,092,562,490.46/1,123,956.20
  6. Step 6: Final answer
    x = 620,213.28

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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.