Home / 1,078,785.52-1,618,500.12-320,652.08

Finding the Fourth Proportional to 1,078,785.52, 1,618,500.12 and 320,652.08

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Solution

The fourth proportional to 1,078,785.52, 1,618,500.12 and 320,652.08 is: 481,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,785.52 : 1,618,500.12 = 320,652.08 : x
  2. Step 2: Convert to fraction form
    1,078,785.52/1,618,500.12 = 320,652.08/x
  3. Step 3: Cross multiply
    1,078,785.52x = 1,618,500.12 × 320,652.08
  4. Step 4: Simplify right side
    1,078,785.52x = 518,975,429,958.25
  5. Step 5: Solve for x
    x = 518,975,429,958.25/1,078,785.52
  6. Step 6: Final answer
    x = 481,073.78

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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.