Home / 752,140.57-1,037,947.93-407,975.64

Finding the Fourth Proportional to 752,140.57, 1,037,947.93 and 407,975.64

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Solution

The fourth proportional to 752,140.57, 1,037,947.93 and 407,975.64 is: 563,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,140.57 : 1,037,947.93 = 407,975.64 : x
  2. Step 2: Convert to fraction form
    752,140.57/1,037,947.93 = 407,975.64/x
  3. Step 3: Cross multiply
    752,140.57x = 1,037,947.93 × 407,975.64
  4. Step 4: Simplify right side
    752,140.57x = 423,457,471,028.43
  5. Step 5: Solve for x
    x = 423,457,471,028.43/752,140.57
  6. Step 6: Final answer
    x = 563,003.10

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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.