Home / 752,078.40-1,127,133.45-302,431.20

Finding the Fourth Proportional to 752,078.40, 1,127,133.45 and 302,431.20

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Solution

The fourth proportional to 752,078.40, 1,127,133.45 and 302,431.20 is: 453,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,078.40 : 1,127,133.45 = 302,431.20 : x
  2. Step 2: Convert to fraction form
    752,078.40/1,127,133.45 = 302,431.20/x
  3. Step 3: Cross multiply
    752,078.40x = 1,127,133.45 × 302,431.20
  4. Step 4: Simplify right side
    752,078.40x = 340,880,321,843.64
  5. Step 5: Solve for x
    x = 340,880,321,843.64/752,078.40
  6. Step 6: Final answer
    x = 453,251.05

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Double scale
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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.