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Finding the Fourth Proportional to 648,212.58, 894,534 and 361,732.56

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Solution

The fourth proportional to 648,212.58, 894,534 and 361,732.56 is: 499,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,212.58 : 894,534 = 361,732.56 : x
  2. Step 2: Convert to fraction form
    648,212.58/894,534 = 361,732.56/x
  3. Step 3: Cross multiply
    648,212.58x = 894,534 × 361,732.56
  4. Step 4: Simplify right side
    648,212.58x = 323,582,073,827.04
  5. Step 5: Solve for x
    x = 323,582,073,827.04/648,212.58
  6. Step 6: Final answer
    x = 499,191.29

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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.