Home / 679,680.72-937,944.09-369,576.54

Finding the Fourth Proportional to 679,680.72, 937,944.09 and 369,576.54

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Solution

The fourth proportional to 679,680.72, 937,944.09 and 369,576.54 is: 510,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,680.72 : 937,944.09 = 369,576.54 : x
  2. Step 2: Convert to fraction form
    679,680.72/937,944.09 = 369,576.54/x
  3. Step 3: Cross multiply
    679,680.72x = 937,944.09 × 369,576.54
  4. Step 4: Simplify right side
    679,680.72x = 346,642,131,495.65
  5. Step 5: Solve for x
    x = 346,642,131,495.65/679,680.72
  6. Step 6: Final answer
    x = 510,007.30

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1.5x scale

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.