Home / 863,666.95-1,295,666.48-331,146.45

Finding the Fourth Proportional to 863,666.95, 1,295,666.48 and 331,146.45

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Solution

The fourth proportional to 863,666.95, 1,295,666.48 and 331,146.45 is: 496,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,666.95 : 1,295,666.48 = 331,146.45 : x
  2. Step 2: Convert to fraction form
    863,666.95/1,295,666.48 = 331,146.45/x
  3. Step 3: Cross multiply
    863,666.95x = 1,295,666.48 × 331,146.45
  4. Step 4: Simplify right side
    863,666.95x = 429,055,358,310.88
  5. Step 5: Solve for x
    x = 429,055,358,310.88/863,666.95
  6. Step 6: Final answer
    x = 496,783.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.