Home / 557,878.32-769,839.24-303,227.28

Finding the Fourth Proportional to 557,878.32, 769,839.24 and 303,227.28

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Solution

The fourth proportional to 557,878.32, 769,839.24 and 303,227.28 is: 418,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,878.32 : 769,839.24 = 303,227.28 : x
  2. Step 2: Convert to fraction form
    557,878.32/769,839.24 = 303,227.28/x
  3. Step 3: Cross multiply
    557,878.32x = 769,839.24 × 303,227.28
  4. Step 4: Simplify right side
    557,878.32x = 233,436,258,782.47
  5. Step 5: Solve for x
    x = 233,436,258,782.47/557,878.32
  6. Step 6: Final answer
    x = 418,435.80

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1.5x scale

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.