Home / 712,605.36-1,068,882.12-213,956.40

Finding the Fourth Proportional to 712,605.36, 1,068,882.12 and 213,956.40

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Solution

The fourth proportional to 712,605.36, 1,068,882.12 and 213,956.40 is: 320,926.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,605.36 : 1,068,882.12 = 213,956.40 : x
  2. Step 2: Convert to fraction form
    712,605.36/1,068,882.12 = 213,956.40/x
  3. Step 3: Cross multiply
    712,605.36x = 1,068,882.12 × 213,956.40
  4. Step 4: Simplify right side
    712,605.36x = 228,694,170,419.57
  5. Step 5: Solve for x
    x = 228,694,170,419.57/712,605.36
  6. Step 6: Final answer
    x = 320,926.82

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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.