Home / 557,560.94-769,437.78-302,912.06

Finding the Fourth Proportional to 557,560.94, 769,437.78 and 302,912.06

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Solution

The fourth proportional to 557,560.94, 769,437.78 and 302,912.06 is: 418,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,560.94 : 769,437.78 = 302,912.06 : x
  2. Step 2: Convert to fraction form
    557,560.94/769,437.78 = 302,912.06/x
  3. Step 3: Cross multiply
    557,560.94x = 769,437.78 × 302,912.06
  4. Step 4: Simplify right side
    557,560.94x = 233,071,982,981.63
  5. Step 5: Solve for x
    x = 233,071,982,981.63/557,560.94
  6. Step 6: Final answer
    x = 418,020.64

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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.