Home / 519,731.06-717,917.20-418,139.24

Finding the Fourth Proportional to 519,731.06, 717,917.20 and 418,139.24

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Solution

The fourth proportional to 519,731.06, 717,917.20 and 418,139.24 is: 577,585.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,731.06 : 717,917.20 = 418,139.24 : x
  2. Step 2: Convert to fraction form
    519,731.06/717,917.20 = 418,139.24/x
  3. Step 3: Cross multiply
    519,731.06x = 717,917.20 × 418,139.24
  4. Step 4: Simplify right side
    519,731.06x = 300,189,352,390.93
  5. Step 5: Solve for x
    x = 300,189,352,390.93/519,731.06
  6. Step 6: Final answer
    x = 577,585.94

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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.