Home / 815,752.80-1,125,898.92-521,213.16

Finding the Fourth Proportional to 815,752.80, 1,125,898.92 and 521,213.16

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Solution

The fourth proportional to 815,752.80, 1,125,898.92 and 521,213.16 is: 719,376.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,752.80 : 1,125,898.92 = 521,213.16 : x
  2. Step 2: Convert to fraction form
    815,752.80/1,125,898.92 = 521,213.16/x
  3. Step 3: Cross multiply
    815,752.80x = 1,125,898.92 × 521,213.16
  4. Step 4: Simplify right side
    815,752.80x = 586,833,333,933.79
  5. Step 5: Solve for x
    x = 586,833,333,933.79/815,752.80
  6. Step 6: Final answer
    x = 719,376.43

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