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Finding the Fourth Proportional to 548,094.70, 756,368.48 and 306,377.13

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Solution

The fourth proportional to 548,094.70, 756,368.48 and 306,377.13 is: 422,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,094.70 : 756,368.48 = 306,377.13 : x
  2. Step 2: Convert to fraction form
    548,094.70/756,368.48 = 306,377.13/x
  3. Step 3: Cross multiply
    548,094.70x = 756,368.48 × 306,377.13
  4. Step 4: Simplify right side
    548,094.70x = 231,734,007,727.19
  5. Step 5: Solve for x
    x = 231,734,007,727.19/548,094.70
  6. Step 6: Final answer
    x = 422,799.21

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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.