Home / 674,759.56-1,011,639.30-408,457.06

Finding the Fourth Proportional to 674,759.56, 1,011,639.30 and 408,457.06

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Solution

The fourth proportional to 674,759.56, 1,011,639.30 and 408,457.06 is: 612,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,759.56 : 1,011,639.30 = 408,457.06 : x
  2. Step 2: Convert to fraction form
    674,759.56/1,011,639.30 = 408,457.06/x
  3. Step 3: Cross multiply
    674,759.56x = 1,011,639.30 × 408,457.06
  4. Step 4: Simplify right side
    674,759.56x = 413,211,214,258.46
  5. Step 5: Solve for x
    x = 413,211,214,258.46/674,759.56
  6. Step 6: Final answer
    x = 612,382.90

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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.