Home / 557,911.28-769,913.16-303,255.92

Finding the Fourth Proportional to 557,911.28, 769,913.16 and 303,255.92

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Solution

The fourth proportional to 557,911.28, 769,913.16 and 303,255.92 is: 418,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,911.28 : 769,913.16 = 303,255.92 : x
  2. Step 2: Convert to fraction form
    557,911.28/769,913.16 = 303,255.92/x
  3. Step 3: Cross multiply
    557,911.28x = 769,913.16 × 303,255.92
  4. Step 4: Simplify right side
    557,911.28x = 233,480,723,655.91
  5. Step 5: Solve for x
    x = 233,480,723,655.91/557,911.28
  6. Step 6: Final answer
    x = 418,490.77

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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.