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Finding the Fourth Proportional to 407,703.91, 562,912.88 and 254,810.83

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Solution

The fourth proportional to 407,703.91, 562,912.88 and 254,810.83 is: 351,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,703.91 : 562,912.88 = 254,810.83 : x
  2. Step 2: Convert to fraction form
    407,703.91/562,912.88 = 254,810.83/x
  3. Step 3: Cross multiply
    407,703.91x = 562,912.88 × 254,810.83
  4. Step 4: Simplify right side
    407,703.91x = 143,436,298,170.49
  5. Step 5: Solve for x
    x = 143,436,298,170.49/407,703.91
  6. Step 6: Final answer
    x = 351,814.87

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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.