Home / 829,062.64-1,243,408.20-323,635.60

Finding the Fourth Proportional to 829,062.64, 1,243,408.20 and 323,635.60

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Solution

The fourth proportional to 829,062.64, 1,243,408.20 and 323,635.60 is: 485,380.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,062.64 : 1,243,408.20 = 323,635.60 : x
  2. Step 2: Convert to fraction form
    829,062.64/1,243,408.20 = 323,635.60/x
  3. Step 3: Cross multiply
    829,062.64x = 1,243,408.20 × 323,635.60
  4. Step 4: Simplify right side
    829,062.64x = 402,411,158,851.92
  5. Step 5: Solve for x
    x = 402,411,158,851.92/829,062.64
  6. Step 6: Final answer
    x = 485,380.89

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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.