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Finding the Fourth Proportional to 456,651.29, 630,432.17 and 275,409.34

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Solution

The fourth proportional to 456,651.29, 630,432.17 and 275,409.34 is: 380,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,651.29 : 630,432.17 = 275,409.34 : x
  2. Step 2: Convert to fraction form
    456,651.29/630,432.17 = 275,409.34/x
  3. Step 3: Cross multiply
    456,651.29x = 630,432.17 × 275,409.34
  4. Step 4: Simplify right side
    456,651.29x = 173,626,907,854.47
  5. Step 5: Solve for x
    x = 173,626,907,854.47/456,651.29
  6. Step 6: Final answer
    x = 380,217.71

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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.