Home / 843,558.88-1,265,244.72-212,472.64

Finding the Fourth Proportional to 843,558.88, 1,265,244.72 and 212,472.64

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Solution

The fourth proportional to 843,558.88, 1,265,244.72 and 212,472.64 is: 318,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,558.88 : 1,265,244.72 = 212,472.64 : x
  2. Step 2: Convert to fraction form
    843,558.88/1,265,244.72 = 212,472.64/x
  3. Step 3: Cross multiply
    843,558.88x = 1,265,244.72 × 212,472.64
  4. Step 4: Simplify right side
    843,558.88x = 268,829,885,904.46
  5. Step 5: Solve for x
    x = 268,829,885,904.46/843,558.88
  6. Step 6: Final answer
    x = 318,685.38

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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.