Home / 407,790.12-562,555.08-286,998.42

Finding the Fourth Proportional to 407,790.12, 562,555.08 and 286,998.42

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Solution

The fourth proportional to 407,790.12, 562,555.08 and 286,998.42 is: 395,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,790.12 : 562,555.08 = 286,998.42 : x
  2. Step 2: Convert to fraction form
    407,790.12/562,555.08 = 286,998.42/x
  3. Step 3: Cross multiply
    407,790.12x = 562,555.08 × 286,998.42
  4. Step 4: Simplify right side
    407,790.12x = 161,452,419,122.97
  5. Step 5: Solve for x
    x = 161,452,419,122.97/407,790.12
  6. Step 6: Final answer
    x = 395,920.38

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Double scale
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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.