Home / 711,653.40-1,067,168.88-212,900.76

Finding the Fourth Proportional to 711,653.40, 1,067,168.88 and 212,900.76

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Solution

The fourth proportional to 711,653.40, 1,067,168.88 and 212,900.76 is: 319,258.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,653.40 : 1,067,168.88 = 212,900.76 : x
  2. Step 2: Convert to fraction form
    711,653.40/1,067,168.88 = 212,900.76/x
  3. Step 3: Cross multiply
    711,653.40x = 1,067,168.88 × 212,900.76
  4. Step 4: Simplify right side
    711,653.40x = 227,201,065,600.35
  5. Step 5: Solve for x
    x = 227,201,065,600.35/711,653.40
  6. Step 6: Final answer
    x = 319,258.03

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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.