Home / 478,045.64-659,677.93-263,143.73

Finding the Fourth Proportional to 478,045.64, 659,677.93 and 263,143.73

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Solution

The fourth proportional to 478,045.64, 659,677.93 and 263,143.73 is: 363,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,045.64 : 659,677.93 = 263,143.73 : x
  2. Step 2: Convert to fraction form
    478,045.64/659,677.93 = 263,143.73/x
  3. Step 3: Cross multiply
    478,045.64x = 659,677.93 × 263,143.73
  4. Step 4: Simplify right side
    478,045.64x = 173,590,111,098.88
  5. Step 5: Solve for x
    x = 173,590,111,098.88/478,045.64
  6. Step 6: Final answer
    x = 363,124.56

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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.