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Finding the Fourth Proportional to 443,506.72, 612,039.87 and 252,520.18

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Solution

The fourth proportional to 443,506.72, 612,039.87 and 252,520.18 is: 348,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,506.72 : 612,039.87 = 252,520.18 : x
  2. Step 2: Convert to fraction form
    443,506.72/612,039.87 = 252,520.18/x
  3. Step 3: Cross multiply
    443,506.72x = 612,039.87 × 252,520.18
  4. Step 4: Simplify right side
    443,506.72x = 154,552,418,139.58
  5. Step 5: Solve for x
    x = 154,552,418,139.58/443,506.72
  6. Step 6: Final answer
    x = 348,478.19

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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.