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Finding the Fourth Proportional to 478,692.44, 660,568.56 and 263,831.84

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Solution

The fourth proportional to 478,692.44, 660,568.56 and 263,831.84 is: 364,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,692.44 : 660,568.56 = 263,831.84 : x
  2. Step 2: Convert to fraction form
    478,692.44/660,568.56 = 263,831.84/x
  3. Step 3: Cross multiply
    478,692.44x = 660,568.56 × 263,831.84
  4. Step 4: Simplify right side
    478,692.44x = 174,279,018,630.95
  5. Step 5: Solve for x
    x = 174,279,018,630.95/478,692.44
  6. Step 6: Final answer
    x = 364,073.05

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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.