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Finding the Fourth Proportional to 492,264, 679,324.68 and 265,909.50

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Solution

The fourth proportional to 492,264, 679,324.68 and 265,909.50 is: 366,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,264 : 679,324.68 = 265,909.50 : x
  2. Step 2: Convert to fraction form
    492,264/679,324.68 = 265,909.50/x
  3. Step 3: Cross multiply
    492,264x = 679,324.68 × 265,909.50
  4. Step 4: Simplify right side
    492,264x = 180,638,885,996.46
  5. Step 5: Solve for x
    x = 180,638,885,996.46/492,264
  6. Step 6: Final answer
    x = 366,955.30

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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.