Home / 911,153.56-1,366,861.04-280,120.36

Finding the Fourth Proportional to 911,153.56, 1,366,861.04 and 280,120.36

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Solution

The fourth proportional to 911,153.56, 1,366,861.04 and 280,120.36 is: 420,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,153.56 : 1,366,861.04 = 280,120.36 : x
  2. Step 2: Convert to fraction form
    911,153.56/1,366,861.04 = 280,120.36/x
  3. Step 3: Cross multiply
    911,153.56x = 1,366,861.04 × 280,120.36
  4. Step 4: Simplify right side
    911,153.56x = 382,885,606,594.77
  5. Step 5: Solve for x
    x = 382,885,606,594.77/911,153.56
  6. Step 6: Final answer
    x = 420,220.72

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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.