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Finding the Fourth Proportional to 450,800.64, 620,850.42 and 348,449.04

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Solution

The fourth proportional to 450,800.64, 620,850.42 and 348,449.04 is: 479,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,800.64 : 620,850.42 = 348,449.04 : x
  2. Step 2: Convert to fraction form
    450,800.64/620,850.42 = 348,449.04/x
  3. Step 3: Cross multiply
    450,800.64x = 620,850.42 × 348,449.04
  4. Step 4: Simplify right side
    450,800.64x = 216,334,732,832.60
  5. Step 5: Solve for x
    x = 216,334,732,832.60/450,800.64
  6. Step 6: Final answer
    x = 479,890.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.