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Finding the Fourth Proportional to 478,444.21, 660,282.80 and 263,584.21

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Solution

The fourth proportional to 478,444.21, 660,282.80 and 263,584.21 is: 363,762.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,444.21 : 660,282.80 = 263,584.21 : x
  2. Step 2: Convert to fraction form
    478,444.21/660,282.80 = 263,584.21/x
  3. Step 3: Cross multiply
    478,444.21x = 660,282.80 × 263,584.21
  4. Step 4: Simplify right side
    478,444.21x = 174,040,120,214.59
  5. Step 5: Solve for x
    x = 174,040,120,214.59/478,444.21
  6. Step 6: Final answer
    x = 363,762.62

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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.