Home / 556,789.65-835,500.38-300,618.78

Finding the Fourth Proportional to 556,789.65, 835,500.38 and 300,618.78

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Solution

The fourth proportional to 556,789.65, 835,500.38 and 300,618.78 is: 451,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,789.65 : 835,500.38 = 300,618.78 : x
  2. Step 2: Convert to fraction form
    556,789.65/835,500.38 = 300,618.78/x
  3. Step 3: Cross multiply
    556,789.65x = 835,500.38 × 300,618.78
  4. Step 4: Simplify right side
    556,789.65x = 251,167,104,925.14
  5. Step 5: Solve for x
    x = 251,167,104,925.14/556,789.65
  6. Step 6: Final answer
    x = 451,098.73

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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.