Home / 712,614.36-1,068,895.62-213,965.40

Finding the Fourth Proportional to 712,614.36, 1,068,895.62 and 213,965.40

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Solution

The fourth proportional to 712,614.36, 1,068,895.62 and 213,965.40 is: 320,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,614.36 : 1,068,895.62 = 213,965.40 : x
  2. Step 2: Convert to fraction form
    712,614.36/1,068,895.62 = 213,965.40/x
  3. Step 3: Cross multiply
    712,614.36x = 1,068,895.62 × 213,965.40
  4. Step 4: Simplify right side
    712,614.36x = 228,706,678,891.55
  5. Step 5: Solve for x
    x = 228,706,678,891.55/712,614.36
  6. Step 6: Final answer
    x = 320,940.32

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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.