Home / 557,836.61-769,811.81-303,187.82

Finding the Fourth Proportional to 557,836.61, 769,811.81 and 303,187.82

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Solution

The fourth proportional to 557,836.61, 769,811.81 and 303,187.82 is: 418,397.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,836.61 : 769,811.81 = 303,187.82 : x
  2. Step 2: Convert to fraction form
    557,836.61/769,811.81 = 303,187.82/x
  3. Step 3: Cross multiply
    557,836.61x = 769,811.81 × 303,187.82
  4. Step 4: Simplify right side
    557,836.61x = 233,397,559,119.16
  5. Step 5: Solve for x
    x = 233,397,559,119.16/557,836.61
  6. Step 6: Final answer
    x = 418,397.71

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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.