Home / 712,076.98-1,068,290.19-213,440.50

Finding the Fourth Proportional to 712,076.98, 1,068,290.19 and 213,440.50

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Solution

The fourth proportional to 712,076.98, 1,068,290.19 and 213,440.50 is: 320,213.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,076.98 : 1,068,290.19 = 213,440.50 : x
  2. Step 2: Convert to fraction form
    712,076.98/1,068,290.19 = 213,440.50/x
  3. Step 3: Cross multiply
    712,076.98x = 1,068,290.19 × 213,440.50
  4. Step 4: Simplify right side
    712,076.98x = 228,016,392,298.70
  5. Step 5: Solve for x
    x = 228,016,392,298.70/712,076.98
  6. Step 6: Final answer
    x = 320,213.12

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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.