Home / 1,200,302.40-1,656,621-691,299.48

Finding the Fourth Proportional to 1,200,302.40, 1,656,621 and 691,299.48

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Solution

The fourth proportional to 1,200,302.40, 1,656,621 and 691,299.48 is: 954,110.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,302.40 : 1,656,621 = 691,299.48 : x
  2. Step 2: Convert to fraction form
    1,200,302.40/1,656,621 = 691,299.48/x
  3. Step 3: Cross multiply
    1,200,302.40x = 1,656,621 × 691,299.48
  4. Step 4: Simplify right side
    1,200,302.40x = 1,145,221,235,857.08
  5. Step 5: Solve for x
    x = 1,145,221,235,857.08/1,200,302.40
  6. Step 6: Final answer
    x = 954,110.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.