Home / 711,867.39-1,067,468.88-412,433.64

Finding the Fourth Proportional to 711,867.39, 1,067,468.88 and 412,433.64

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Solution

The fourth proportional to 711,867.39, 1,067,468.88 and 412,433.64 is: 618,457.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,867.39 : 1,067,468.88 = 412,433.64 : x
  2. Step 2: Convert to fraction form
    711,867.39/1,067,468.88 = 412,433.64/x
  3. Step 3: Cross multiply
    711,867.39x = 1,067,468.88 × 412,433.64
  4. Step 4: Simplify right side
    711,867.39x = 440,260,075,765.12
  5. Step 5: Solve for x
    x = 440,260,075,765.12/711,867.39
  6. Step 6: Final answer
    x = 618,457.99

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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.