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Finding the Fourth Proportional to 443,415.49, 611,913.96 and 252,428.63

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Solution

The fourth proportional to 443,415.49, 611,913.96 and 252,428.63 is: 348,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,415.49 : 611,913.96 = 252,428.63 : x
  2. Step 2: Convert to fraction form
    443,415.49/611,913.96 = 252,428.63/x
  3. Step 3: Cross multiply
    443,415.49x = 611,913.96 × 252,428.63
  4. Step 4: Simplify right side
    443,415.49x = 154,464,599,541.11
  5. Step 5: Solve for x
    x = 154,464,599,541.11/443,415.49
  6. Step 6: Final answer
    x = 348,351.84

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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.