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Finding the Fourth Proportional to 492,118.63, 679,123.64 and 265,764.13

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Solution

The fourth proportional to 492,118.63, 679,123.64 and 265,764.13 is: 366,754.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,118.63 : 679,123.64 = 265,764.13 : x
  2. Step 2: Convert to fraction form
    492,118.63/679,123.64 = 265,764.13/x
  3. Step 3: Cross multiply
    492,118.63x = 679,123.64 × 265,764.13
  4. Step 4: Simplify right side
    492,118.63x = 180,486,702,313.63
  5. Step 5: Solve for x
    x = 180,486,702,313.63/492,118.63
  6. Step 6: Final answer
    x = 366,754.46

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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.