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Finding the Fourth Proportional to 557,718.66, 769,652.82 and 303,069.24

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Solution

The fourth proportional to 557,718.66, 769,652.82 and 303,069.24 is: 418,236.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,718.66 : 769,652.82 = 303,069.24 : x
  2. Step 2: Convert to fraction form
    557,718.66/769,652.82 = 303,069.24/x
  3. Step 3: Cross multiply
    557,718.66x = 769,652.82 × 303,069.24
  4. Step 4: Simplify right side
    557,718.66x = 233,258,095,221.26
  5. Step 5: Solve for x
    x = 233,258,095,221.26/557,718.66
  6. Step 6: Final answer
    x = 418,236.13

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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.