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Finding the Fourth Proportional to 456,813.11, 630,407.63 and 252,882.87

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Solution

The fourth proportional to 456,813.11, 630,407.63 and 252,882.87 is: 348,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,813.11 : 630,407.63 = 252,882.87 : x
  2. Step 2: Convert to fraction form
    456,813.11/630,407.63 = 252,882.87/x
  3. Step 3: Cross multiply
    456,813.11x = 630,407.63 × 252,882.87
  4. Step 4: Simplify right side
    456,813.11x = 159,419,289,479.88
  5. Step 5: Solve for x
    x = 159,419,289,479.88/456,813.11
  6. Step 6: Final answer
    x = 348,981.43

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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.