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Finding the Fourth Proportional to 478,504.42, 660,365.47 and 263,644.42

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Solution

The fourth proportional to 478,504.42, 660,365.47 and 263,644.42 is: 363,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,504.42 : 660,365.47 = 263,644.42 : x
  2. Step 2: Convert to fraction form
    478,504.42/660,365.47 = 263,644.42/x
  3. Step 3: Cross multiply
    478,504.42x = 660,365.47 × 263,644.42
  4. Step 4: Simplify right side
    478,504.42x = 174,101,671,326.18
  5. Step 5: Solve for x
    x = 174,101,671,326.18/478,504.42
  6. Step 6: Final answer
    x = 363,845.48

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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.