Home / 801,330.40-1,105,801.72-438,747.68

Finding the Fourth Proportional to 801,330.40, 1,105,801.72 and 438,747.68

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Solution

The fourth proportional to 801,330.40, 1,105,801.72 and 438,747.68 is: 605,453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,330.40 : 1,105,801.72 = 438,747.68 : x
  2. Step 2: Convert to fraction form
    801,330.40/1,105,801.72 = 438,747.68/x
  3. Step 3: Cross multiply
    801,330.40x = 1,105,801.72 × 438,747.68
  4. Step 4: Simplify right side
    801,330.40x = 485,167,939,190.01
  5. Step 5: Solve for x
    x = 485,167,939,190.01/801,330.40
  6. Step 6: Final answer
    x = 605,453.06

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1.5x scale

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.