Home / 752,495.10-1,128,742.65-453,896.70

Finding the Fourth Proportional to 752,495.10, 1,128,742.65 and 453,896.70

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Solution

The fourth proportional to 752,495.10, 1,128,742.65 and 453,896.70 is: 680,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,495.10 : 1,128,742.65 = 453,896.70 : x
  2. Step 2: Convert to fraction form
    752,495.10/1,128,742.65 = 453,896.70/x
  3. Step 3: Cross multiply
    752,495.10x = 1,128,742.65 × 453,896.70
  4. Step 4: Simplify right side
    752,495.10x = 512,332,563,984.26
  5. Step 5: Solve for x
    x = 512,332,563,984.26/752,495.10
  6. Step 6: Final answer
    x = 680,845.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.