Home / 557,638.16-769,529.58-302,991.18

Finding the Fourth Proportional to 557,638.16, 769,529.58 and 302,991.18

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Solution

The fourth proportional to 557,638.16, 769,529.58 and 302,991.18 is: 418,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,638.16 : 769,529.58 = 302,991.18 : x
  2. Step 2: Convert to fraction form
    557,638.16/769,529.58 = 302,991.18/x
  3. Step 3: Cross multiply
    557,638.16x = 769,529.58 × 302,991.18
  4. Step 4: Simplify right side
    557,638.16x = 233,160,675,489.10
  5. Step 5: Solve for x
    x = 233,160,675,489.10/557,638.16
  6. Step 6: Final answer
    x = 418,121.81

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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.