Home / 477,985.78-659,616.78-263,129.50

Finding the Fourth Proportional to 477,985.78, 659,616.78 and 263,129.50

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Solution

The fourth proportional to 477,985.78, 659,616.78 and 263,129.50 is: 363,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,985.78 : 659,616.78 = 263,129.50 : x
  2. Step 2: Convert to fraction form
    477,985.78/659,616.78 = 263,129.50/x
  3. Step 3: Cross multiply
    477,985.78x = 659,616.78 × 263,129.50
  4. Step 4: Simplify right side
    477,985.78x = 173,564,633,513.01
  5. Step 5: Solve for x
    x = 173,564,633,513.01/477,985.78
  6. Step 6: Final answer
    x = 363,116.73

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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.