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Finding the Fourth Proportional to 561,799.89, 775,283.85 and 360,945.81

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Solution

The fourth proportional to 561,799.89, 775,283.85 and 360,945.81 is: 498,105.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,799.89 : 775,283.85 = 360,945.81 : x
  2. Step 2: Convert to fraction form
    561,799.89/775,283.85 = 360,945.81/x
  3. Step 3: Cross multiply
    561,799.89x = 775,283.85 × 360,945.81
  4. Step 4: Simplify right side
    561,799.89x = 279,835,457,218.17
  5. Step 5: Solve for x
    x = 279,835,457,218.17/561,799.89
  6. Step 6: Final answer
    x = 498,105.22

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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.