Home / 827,917.20-1,241,875.80-512,989.20

Finding the Fourth Proportional to 827,917.20, 1,241,875.80 and 512,989.20

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Solution

The fourth proportional to 827,917.20, 1,241,875.80 and 512,989.20 is: 769,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,917.20 : 1,241,875.80 = 512,989.20 : x
  2. Step 2: Convert to fraction form
    827,917.20/1,241,875.80 = 512,989.20/x
  3. Step 3: Cross multiply
    827,917.20x = 1,241,875.80 × 512,989.20
  4. Step 4: Simplify right side
    827,917.20x = 637,068,873,141.36
  5. Step 5: Solve for x
    x = 637,068,873,141.36/827,917.20
  6. Step 6: Final answer
    x = 769,483.80

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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.