Home / 1,352,309.60-2,028,464.40-355,138.40

Finding the Fourth Proportional to 1,352,309.60, 2,028,464.40 and 355,138.40

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Solution

The fourth proportional to 1,352,309.60, 2,028,464.40 and 355,138.40 is: 532,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,309.60 : 2,028,464.40 = 355,138.40 : x
  2. Step 2: Convert to fraction form
    1,352,309.60/2,028,464.40 = 355,138.40/x
  3. Step 3: Cross multiply
    1,352,309.60x = 2,028,464.40 × 355,138.40
  4. Step 4: Simplify right side
    1,352,309.60x = 720,385,601,472.96
  5. Step 5: Solve for x
    x = 720,385,601,472.96/1,352,309.60
  6. Step 6: Final answer
    x = 532,707.60

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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.