Home / 811,529.46-1,217,056.25-305,725.50

Finding the Fourth Proportional to 811,529.46, 1,217,056.25 and 305,725.50

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Solution

The fourth proportional to 811,529.46, 1,217,056.25 and 305,725.50 is: 458,498.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,529.46 : 1,217,056.25 = 305,725.50 : x
  2. Step 2: Convert to fraction form
    811,529.46/1,217,056.25 = 305,725.50/x
  3. Step 3: Cross multiply
    811,529.46x = 1,217,056.25 × 305,725.50
  4. Step 4: Simplify right side
    811,529.46x = 372,085,130,559.38
  5. Step 5: Solve for x
    x = 372,085,130,559.38/811,529.46
  6. Step 6: Final answer
    x = 458,498.61

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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.