Home / 711,195.30-1,066,946.55-212,609.70

Finding the Fourth Proportional to 711,195.30, 1,066,946.55 and 212,609.70

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Solution

The fourth proportional to 711,195.30, 1,066,946.55 and 212,609.70 is: 318,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,195.30 : 1,066,946.55 = 212,609.70 : x
  2. Step 2: Convert to fraction form
    711,195.30/1,066,946.55 = 212,609.70/x
  3. Step 3: Cross multiply
    711,195.30x = 1,066,946.55 × 212,609.70
  4. Step 4: Simplify right side
    711,195.30x = 226,843,185,911.54
  5. Step 5: Solve for x
    x = 226,843,185,911.54/711,195.30
  6. Step 6: Final answer
    x = 318,960.47

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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.