Home / 711,015.45-1,066,690.93-212,366.49

Finding the Fourth Proportional to 711,015.45, 1,066,690.93 and 212,366.49

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Solution

The fourth proportional to 711,015.45, 1,066,690.93 and 212,366.49 is: 318,599.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,015.45 : 1,066,690.93 = 212,366.49 : x
  2. Step 2: Convert to fraction form
    711,015.45/1,066,690.93 = 212,366.49/x
  3. Step 3: Cross multiply
    711,015.45x = 1,066,690.93 × 212,366.49
  4. Step 4: Simplify right side
    711,015.45x = 226,529,408,718.94
  5. Step 5: Solve for x
    x = 226,529,408,718.94/711,015.45
  6. Step 6: Final answer
    x = 318,599.84

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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.