Home / 916,221.52-1,374,419.73-284,965.84

Finding the Fourth Proportional to 916,221.52, 1,374,419.73 and 284,965.84

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Solution

The fourth proportional to 916,221.52, 1,374,419.73 and 284,965.84 is: 427,475.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,221.52 : 1,374,419.73 = 284,965.84 : x
  2. Step 2: Convert to fraction form
    916,221.52/1,374,419.73 = 284,965.84/x
  3. Step 3: Cross multiply
    916,221.52x = 1,374,419.73 × 284,965.84
  4. Step 4: Simplify right side
    916,221.52x = 391,662,672,872.02
  5. Step 5: Solve for x
    x = 391,662,672,872.02/916,221.52
  6. Step 6: Final answer
    x = 427,475.96

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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.