Home / 496,895.31-685,732.23-279,142.20

Finding the Fourth Proportional to 496,895.31, 685,732.23 and 279,142.20

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Solution

The fourth proportional to 496,895.31, 685,732.23 and 279,142.20 is: 385,225.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,895.31 : 685,732.23 = 279,142.20 : x
  2. Step 2: Convert to fraction form
    496,895.31/685,732.23 = 279,142.20/x
  3. Step 3: Cross multiply
    496,895.31x = 685,732.23 × 279,142.20
  4. Step 4: Simplify right side
    496,895.31x = 191,416,803,293.11
  5. Step 5: Solve for x
    x = 191,416,803,293.11/496,895.31
  6. Step 6: Final answer
    x = 385,225.62

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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.