Home / 712,609.11-1,068,887.75-213,960.15

Finding the Fourth Proportional to 712,609.11, 1,068,887.75 and 213,960.15

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Solution

The fourth proportional to 712,609.11, 1,068,887.75 and 213,960.15 is: 320,932.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,609.11 : 1,068,887.75 = 213,960.15 : x
  2. Step 2: Convert to fraction form
    712,609.11/1,068,887.75 = 213,960.15/x
  3. Step 3: Cross multiply
    712,609.11x = 1,068,887.75 × 213,960.15
  4. Step 4: Simplify right side
    712,609.11x = 228,699,382,253.36
  5. Step 5: Solve for x
    x = 228,699,382,253.36/712,609.11
  6. Step 6: Final answer
    x = 320,932.44

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1.5x scale

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.