Home / 752,029.10-1,128,043.65-528,080.30

Finding the Fourth Proportional to 752,029.10, 1,128,043.65 and 528,080.30

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Solution

The fourth proportional to 752,029.10, 1,128,043.65 and 528,080.30 is: 792,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,029.10 : 1,128,043.65 = 528,080.30 : x
  2. Step 2: Convert to fraction form
    752,029.10/1,128,043.65 = 528,080.30/x
  3. Step 3: Cross multiply
    752,029.10x = 1,128,043.65 × 528,080.30
  4. Step 4: Simplify right side
    752,029.10x = 595,697,629,105.10
  5. Step 5: Solve for x
    x = 595,697,629,105.10/752,029.10
  6. Step 6: Final answer
    x = 792,120.45

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Double scale
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Similar ratio
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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.