Home / 828,310.60-1,242,465.90-529,712.20

Finding the Fourth Proportional to 828,310.60, 1,242,465.90 and 529,712.20

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Solution

The fourth proportional to 828,310.60, 1,242,465.90 and 529,712.20 is: 794,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,310.60 : 1,242,465.90 = 529,712.20 : x
  2. Step 2: Convert to fraction form
    828,310.60/1,242,465.90 = 529,712.20/x
  3. Step 3: Cross multiply
    828,310.60x = 1,242,465.90 × 529,712.20
  4. Step 4: Simplify right side
    828,310.60x = 658,149,345,313.98
  5. Step 5: Solve for x
    x = 658,149,345,313.98/828,310.60
  6. Step 6: Final answer
    x = 794,568.30

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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.