Home / 842,307.72-1,162,382.76-479,731.56

Finding the Fourth Proportional to 842,307.72, 1,162,382.76 and 479,731.56

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Solution

The fourth proportional to 842,307.72, 1,162,382.76 and 479,731.56 is: 662,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,307.72 : 1,162,382.76 = 479,731.56 : x
  2. Step 2: Convert to fraction form
    842,307.72/1,162,382.76 = 479,731.56/x
  3. Step 3: Cross multiply
    842,307.72x = 1,162,382.76 × 479,731.56
  4. Step 4: Simplify right side
    842,307.72x = 557,631,694,771.91
  5. Step 5: Solve for x
    x = 557,631,694,771.91/842,307.72
  6. Step 6: Final answer
    x = 662,028.47

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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.