Home / 828,311.60-1,242,467.40-529,713.20

Finding the Fourth Proportional to 828,311.60, 1,242,467.40 and 529,713.20

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Solution

The fourth proportional to 828,311.60, 1,242,467.40 and 529,713.20 is: 794,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,311.60 : 1,242,467.40 = 529,713.20 : x
  2. Step 2: Convert to fraction form
    828,311.60/1,242,467.40 = 529,713.20/x
  3. Step 3: Cross multiply
    828,311.60x = 1,242,467.40 × 529,713.20
  4. Step 4: Simplify right side
    828,311.60x = 658,151,382,349.68
  5. Step 5: Solve for x
    x = 658,151,382,349.68/828,311.60
  6. Step 6: Final answer
    x = 794,569.80

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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.