Home / 711,178.30-1,066,921.05-212,592.70

Finding the Fourth Proportional to 711,178.30, 1,066,921.05 and 212,592.70

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Solution

The fourth proportional to 711,178.30, 1,066,921.05 and 212,592.70 is: 318,934.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,178.30 : 1,066,921.05 = 212,592.70 : x
  2. Step 2: Convert to fraction form
    711,178.30/1,066,921.05 = 212,592.70/x
  3. Step 3: Cross multiply
    711,178.30x = 1,066,921.05 × 212,592.70
  4. Step 4: Simplify right side
    711,178.30x = 226,819,626,706.34
  5. Step 5: Solve for x
    x = 226,819,626,706.34/711,178.30
  6. Step 6: Final answer
    x = 318,934.97

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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.