Home / 1,311,673.12-1,967,786.16-425,140

Finding the Fourth Proportional to 1,311,673.12, 1,967,786.16 and 425,140

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Solution

The fourth proportional to 1,311,673.12, 1,967,786.16 and 425,140 is: 637,799.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,673.12 : 1,967,786.16 = 425,140 : x
  2. Step 2: Convert to fraction form
    1,311,673.12/1,967,786.16 = 425,140/x
  3. Step 3: Cross multiply
    1,311,673.12x = 1,967,786.16 × 425,140
  4. Step 4: Simplify right side
    1,311,673.12x = 836,584,608,062.40
  5. Step 5: Solve for x
    x = 836,584,608,062.40/1,311,673.12
  6. Step 6: Final answer
    x = 637,799.61

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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.