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Finding the Fourth Proportional to 503,289, 694,543.68 and 276,939.36

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Solution

The fourth proportional to 503,289, 694,543.68 and 276,939.36 is: 382,178.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,289 : 694,543.68 = 276,939.36 : x
  2. Step 2: Convert to fraction form
    503,289/694,543.68 = 276,939.36/x
  3. Step 3: Cross multiply
    503,289x = 694,543.68 × 276,939.36
  4. Step 4: Simplify right side
    503,289x = 192,346,482,231.25
  5. Step 5: Solve for x
    x = 192,346,482,231.25/503,289
  6. Step 6: Final answer
    x = 382,178.99

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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.