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Finding the Fourth Proportional to 484,539.56, 668,657.90 and 269,679.70

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Solution

The fourth proportional to 484,539.56, 668,657.90 and 269,679.70 is: 372,154.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,539.56 : 668,657.90 = 269,679.70 : x
  2. Step 2: Convert to fraction form
    484,539.56/668,657.90 = 269,679.70/x
  3. Step 3: Cross multiply
    484,539.56x = 668,657.90 × 269,679.70
  4. Step 4: Simplify right side
    484,539.56x = 180,323,461,874.63
  5. Step 5: Solve for x
    x = 180,323,461,874.63/484,539.56
  6. Step 6: Final answer
    x = 372,154.26

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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.