Home / 557,873.37-769,849.07-316,178.28

Finding the Fourth Proportional to 557,873.37, 769,849.07 and 316,178.28

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Solution

The fourth proportional to 557,873.37, 769,849.07 and 316,178.28 is: 436,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,873.37 : 769,849.07 = 316,178.28 : x
  2. Step 2: Convert to fraction form
    557,873.37/769,849.07 = 316,178.28/x
  3. Step 3: Cross multiply
    557,873.37x = 769,849.07 × 316,178.28
  4. Step 4: Simplify right side
    557,873.37x = 243,409,553,231.31
  5. Step 5: Solve for x
    x = 243,409,553,231.31/557,873.37
  6. Step 6: Final answer
    x = 436,316.85

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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.