Home / 911,071.56-1,366,738.02-280,038.36

Finding the Fourth Proportional to 911,071.56, 1,366,738.02 and 280,038.36

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Solution

The fourth proportional to 911,071.56, 1,366,738.02 and 280,038.36 is: 420,097.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,071.56 : 1,366,738.02 = 280,038.36 : x
  2. Step 2: Convert to fraction form
    911,071.56/1,366,738.02 = 280,038.36/x
  3. Step 3: Cross multiply
    911,071.56x = 1,366,738.02 × 280,038.36
  4. Step 4: Simplify right side
    911,071.56x = 382,739,073,670.45
  5. Step 5: Solve for x
    x = 382,739,073,670.45/911,071.56
  6. Step 6: Final answer
    x = 420,097.71

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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.