Home / 752,470.50-1,038,409.29-412,938.75

Finding the Fourth Proportional to 752,470.50, 1,038,409.29 and 412,938.75

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Solution

The fourth proportional to 752,470.50, 1,038,409.29 and 412,938.75 is: 569,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,470.50 : 1,038,409.29 = 412,938.75 : x
  2. Step 2: Convert to fraction form
    752,470.50/1,038,409.29 = 412,938.75/x
  3. Step 3: Cross multiply
    752,470.50x = 1,038,409.29 × 412,938.75
  4. Step 4: Simplify right side
    752,470.50x = 428,799,434,200.99
  5. Step 5: Solve for x
    x = 428,799,434,200.99/752,470.50
  6. Step 6: Final answer
    x = 569,855.48

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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.