Home / 718,212.60-1,076,987.64-212,592.72

Finding the Fourth Proportional to 718,212.60, 1,076,987.64 and 212,592.72

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Solution

The fourth proportional to 718,212.60, 1,076,987.64 and 212,592.72 is: 318,791.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,212.60 : 1,076,987.64 = 212,592.72 : x
  2. Step 2: Convert to fraction form
    718,212.60/1,076,987.64 = 212,592.72/x
  3. Step 3: Cross multiply
    718,212.60x = 1,076,987.64 × 212,592.72
  4. Step 4: Simplify right side
    718,212.60x = 228,959,731,793.98
  5. Step 5: Solve for x
    x = 228,959,731,793.98/718,212.60
  6. Step 6: Final answer
    x = 318,791.03

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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.