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Finding the Fourth Proportional to 478,544.33, 660,420.59 and 263,684.33

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Solution

The fourth proportional to 478,544.33, 660,420.59 and 263,684.33 is: 363,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,544.33 : 660,420.59 = 263,684.33 : x
  2. Step 2: Convert to fraction form
    478,544.33/660,420.59 = 263,684.33/x
  3. Step 3: Cross multiply
    478,544.33x = 660,420.59 × 263,684.33
  4. Step 4: Simplify right side
    478,544.33x = 174,142,561,124.99
  5. Step 5: Solve for x
    x = 174,142,561,124.99/478,544.33
  6. Step 6: Final answer
    x = 363,900.59

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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.