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Finding the Fourth Proportional to 407,014.68, 561,713.88 and 225,785.04

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Solution

The fourth proportional to 407,014.68, 561,713.88 and 225,785.04 is: 311,602.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,014.68 : 561,713.88 = 225,785.04 : x
  2. Step 2: Convert to fraction form
    407,014.68/561,713.88 = 225,785.04/x
  3. Step 3: Cross multiply
    407,014.68x = 561,713.88 × 225,785.04
  4. Step 4: Simplify right side
    407,014.68x = 126,826,590,864.36
  5. Step 5: Solve for x
    x = 126,826,590,864.36/407,014.68
  6. Step 6: Final answer
    x = 311,602.01

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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.