Home / 407,890.38-562,904.52-279,098.83

Finding the Fourth Proportional to 407,890.38, 562,904.52 and 279,098.83

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Solution

The fourth proportional to 407,890.38, 562,904.52 and 279,098.83 is: 385,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,890.38 : 562,904.52 = 279,098.83 : x
  2. Step 2: Convert to fraction form
    407,890.38/562,904.52 = 279,098.83/x
  3. Step 3: Cross multiply
    407,890.38x = 562,904.52 × 279,098.83
  4. Step 4: Simplify right side
    407,890.38x = 157,105,990,119.19
  5. Step 5: Solve for x
    x = 157,105,990,119.19/407,890.38
  6. Step 6: Final answer
    x = 385,167.19

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1.5x scale

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.