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Finding the Fourth Proportional to 491,303.03, 678,029.07 and 297,727.68

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Solution

The fourth proportional to 491,303.03, 678,029.07 and 297,727.68 is: 410,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,303.03 : 678,029.07 = 297,727.68 : x
  2. Step 2: Convert to fraction form
    491,303.03/678,029.07 = 297,727.68/x
  3. Step 3: Cross multiply
    491,303.03x = 678,029.07 × 297,727.68
  4. Step 4: Simplify right side
    491,303.03x = 201,868,021,983.66
  5. Step 5: Solve for x
    x = 201,868,021,983.66/491,303.03
  6. Step 6: Final answer
    x = 410,882.92

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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.