Home / 815,850.72-1,126,035.02-521,312.04

Finding the Fourth Proportional to 815,850.72, 1,126,035.02 and 521,312.04

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Solution

The fourth proportional to 815,850.72, 1,126,035.02 and 521,312.04 is: 719,513.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,850.72 : 1,126,035.02 = 521,312.04 : x
  2. Step 2: Convert to fraction form
    815,850.72/1,126,035.02 = 521,312.04/x
  3. Step 3: Cross multiply
    815,850.72x = 1,126,035.02 × 521,312.04
  4. Step 4: Simplify right side
    815,850.72x = 587,015,610,781.08
  5. Step 5: Solve for x
    x = 587,015,610,781.08/815,850.72
  6. Step 6: Final answer
    x = 719,513.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.