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Finding the Fourth Proportional to 536,123.68, 739,867.92 and 309,769.12

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Solution

The fourth proportional to 536,123.68, 739,867.92 and 309,769.12 is: 427,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,123.68 : 739,867.92 = 309,769.12 : x
  2. Step 2: Convert to fraction form
    536,123.68/739,867.92 = 309,769.12/x
  3. Step 3: Cross multiply
    536,123.68x = 739,867.92 × 309,769.12
  4. Step 4: Simplify right side
    536,123.68x = 229,188,234,494.63
  5. Step 5: Solve for x
    x = 229,188,234,494.63/536,123.68
  6. Step 6: Final answer
    x = 427,491.35

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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.