Home / 478,045.07-659,677.16-263,143.16

Finding the Fourth Proportional to 478,045.07, 659,677.16 and 263,143.16

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Solution

The fourth proportional to 478,045.07, 659,677.16 and 263,143.16 is: 363,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,045.07 : 659,677.16 = 263,143.16 : x
  2. Step 2: Convert to fraction form
    478,045.07/659,677.16 = 263,143.16/x
  3. Step 3: Cross multiply
    478,045.07x = 659,677.16 × 263,143.16
  4. Step 4: Simplify right side
    478,045.07x = 173,589,534,607.09
  5. Step 5: Solve for x
    x = 173,589,534,607.09/478,045.07
  6. Step 6: Final answer
    x = 363,123.78

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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.