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Finding the Fourth Proportional to 492,262, 679,321.92 and 265,907.50

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Solution

The fourth proportional to 492,262, 679,321.92 and 265,907.50 is: 366,952.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,262 : 679,321.92 = 265,907.50 : x
  2. Step 2: Convert to fraction form
    492,262/679,321.92 = 265,907.50/x
  3. Step 3: Cross multiply
    492,262x = 679,321.92 × 265,907.50
  4. Step 4: Simplify right side
    492,262x = 180,636,793,442.40
  5. Step 5: Solve for x
    x = 180,636,793,442.40/492,262
  6. Step 6: Final answer
    x = 366,952.54

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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.