Home / 1,059,280.80-1,588,921.20-386,122.20

Finding the Fourth Proportional to 1,059,280.80, 1,588,921.20 and 386,122.20

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Solution

The fourth proportional to 1,059,280.80, 1,588,921.20 and 386,122.20 is: 579,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,280.80 : 1,588,921.20 = 386,122.20 : x
  2. Step 2: Convert to fraction form
    1,059,280.80/1,588,921.20 = 386,122.20/x
  3. Step 3: Cross multiply
    1,059,280.80x = 1,588,921.20 × 386,122.20
  4. Step 4: Simplify right side
    1,059,280.80x = 613,517,749,370.64
  5. Step 5: Solve for x
    x = 613,517,749,370.64/1,059,280.80
  6. Step 6: Final answer
    x = 579,183.30

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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.