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Finding the Fourth Proportional to 492,452.69, 679,642.76 and 274,695.67

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Solution

The fourth proportional to 492,452.69, 679,642.76 and 274,695.67 is: 379,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,452.69 : 679,642.76 = 274,695.67 : x
  2. Step 2: Convert to fraction form
    492,452.69/679,642.76 = 274,695.67/x
  3. Step 3: Cross multiply
    492,452.69x = 679,642.76 × 274,695.67
  4. Step 4: Simplify right side
    492,452.69x = 186,694,920,246.26
  5. Step 5: Solve for x
    x = 186,694,920,246.26/492,452.69
  6. Step 6: Final answer
    x = 379,112.40

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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.