Home / 752,450.50-1,038,381.69-412,918.75

Finding the Fourth Proportional to 752,450.50, 1,038,381.69 and 412,918.75

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Solution

The fourth proportional to 752,450.50, 1,038,381.69 and 412,918.75 is: 569,827.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,450.50 : 1,038,381.69 = 412,918.75 : x
  2. Step 2: Convert to fraction form
    752,450.50/1,038,381.69 = 412,918.75/x
  3. Step 3: Cross multiply
    752,450.50x = 1,038,381.69 × 412,918.75
  4. Step 4: Simplify right side
    752,450.50x = 428,767,269,457.69
  5. Step 5: Solve for x
    x = 428,767,269,457.69/752,450.50
  6. Step 6: Final answer
    x = 569,827.88

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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.