Home / 1,107,338.70-1,661,008.05-265,890.45

Finding the Fourth Proportional to 1,107,338.70, 1,661,008.05 and 265,890.45

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Solution

The fourth proportional to 1,107,338.70, 1,661,008.05 and 265,890.45 is: 398,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,338.70 : 1,661,008.05 = 265,890.45 : x
  2. Step 2: Convert to fraction form
    1,107,338.70/1,661,008.05 = 265,890.45/x
  3. Step 3: Cross multiply
    1,107,338.70x = 1,661,008.05 × 265,890.45
  4. Step 4: Simplify right side
    1,107,338.70x = 441,646,177,868.12
  5. Step 5: Solve for x
    x = 441,646,177,868.12/1,107,338.70
  6. Step 6: Final answer
    x = 398,835.68

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Double scale
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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.