Home / 712,322.28-1,068,538.68-206,891.40

Finding the Fourth Proportional to 712,322.28, 1,068,538.68 and 206,891.40

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Solution

The fourth proportional to 712,322.28, 1,068,538.68 and 206,891.40 is: 310,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,322.28 : 1,068,538.68 = 206,891.40 : x
  2. Step 2: Convert to fraction form
    712,322.28/1,068,538.68 = 206,891.40/x
  3. Step 3: Cross multiply
    712,322.28x = 1,068,538.68 × 206,891.40
  4. Step 4: Simplify right side
    712,322.28x = 221,071,463,459.35
  5. Step 5: Solve for x
    x = 221,071,463,459.35/712,322.28
  6. Step 6: Final answer
    x = 310,353.15

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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.