Home / 1,299,645.80-1,949,123.10-401,085.80

Finding the Fourth Proportional to 1,299,645.80, 1,949,123.10 and 401,085.80

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Solution

The fourth proportional to 1,299,645.80, 1,949,123.10 and 401,085.80 is: 601,522.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,645.80 : 1,949,123.10 = 401,085.80 : x
  2. Step 2: Convert to fraction form
    1,299,645.80/1,949,123.10 = 401,085.80/x
  3. Step 3: Cross multiply
    1,299,645.80x = 1,949,123.10 × 401,085.80
  4. Step 4: Simplify right side
    1,299,645.80x = 781,765,597,861.98
  5. Step 5: Solve for x
    x = 781,765,597,861.98/1,299,645.80
  6. Step 6: Final answer
    x = 601,522.04

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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.