Home / 711,165.30-1,066,901.55-212,579.70

Finding the Fourth Proportional to 711,165.30, 1,066,901.55 and 212,579.70

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Solution

The fourth proportional to 711,165.30, 1,066,901.55 and 212,579.70 is: 318,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,165.30 : 1,066,901.55 = 212,579.70 : x
  2. Step 2: Convert to fraction form
    711,165.30/1,066,901.55 = 212,579.70/x
  3. Step 3: Cross multiply
    711,165.30x = 1,066,901.55 × 212,579.70
  4. Step 4: Simplify right side
    711,165.30x = 226,801,611,428.54
  5. Step 5: Solve for x
    x = 226,801,611,428.54/711,165.30
  6. Step 6: Final answer
    x = 318,915.46

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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.