Home / 557,645.26-835,345.23-257,712.79

Finding the Fourth Proportional to 557,645.26, 835,345.23 and 257,712.79

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Solution

The fourth proportional to 557,645.26, 835,345.23 and 257,712.79 is: 386,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,645.26 : 835,345.23 = 257,712.79 : x
  2. Step 2: Convert to fraction form
    557,645.26/835,345.23 = 257,712.79/x
  3. Step 3: Cross multiply
    557,645.26x = 835,345.23 × 257,712.79
  4. Step 4: Simplify right side
    557,645.26x = 215,279,149,836.49
  5. Step 5: Solve for x
    x = 215,279,149,836.49/557,645.26
  6. Step 6: Final answer
    x = 386,050.35

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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.