Home / 828,872.01-1,143,999.99-518,918.69

Finding the Fourth Proportional to 828,872.01, 1,143,999.99 and 518,918.69

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Solution

The fourth proportional to 828,872.01, 1,143,999.99 and 518,918.69 is: 716,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,872.01 : 1,143,999.99 = 518,918.69 : x
  2. Step 2: Convert to fraction form
    828,872.01/1,143,999.99 = 518,918.69/x
  3. Step 3: Cross multiply
    828,872.01x = 1,143,999.99 × 518,918.69
  4. Step 4: Simplify right side
    828,872.01x = 593,642,979,030.81
  5. Step 5: Solve for x
    x = 593,642,979,030.81/828,872.01
  6. Step 6: Final answer
    x = 716,205.85

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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.