Home / 721,572.12-1,082,385.72-322,216.20

Finding the Fourth Proportional to 721,572.12, 1,082,385.72 and 322,216.20

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Solution

The fourth proportional to 721,572.12, 1,082,385.72 and 322,216.20 is: 483,336.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,572.12 : 1,082,385.72 = 322,216.20 : x
  2. Step 2: Convert to fraction form
    721,572.12/1,082,385.72 = 322,216.20/x
  3. Step 3: Cross multiply
    721,572.12x = 1,082,385.72 × 322,216.20
  4. Step 4: Simplify right side
    721,572.12x = 348,762,213,632.66
  5. Step 5: Solve for x
    x = 348,762,213,632.66/721,572.12
  6. Step 6: Final answer
    x = 483,336.60

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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.