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Finding the Fourth Proportional to 404,778.41, 559,090.19 and 303,257.87

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Solution

The fourth proportional to 404,778.41, 559,090.19 and 303,257.87 is: 418,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,778.41 : 559,090.19 = 303,257.87 : x
  2. Step 2: Convert to fraction form
    404,778.41/559,090.19 = 303,257.87/x
  3. Step 3: Cross multiply
    404,778.41x = 559,090.19 × 303,257.87
  4. Step 4: Simplify right side
    404,778.41x = 169,548,498,641.01
  5. Step 5: Solve for x
    x = 169,548,498,641.01/404,778.41
  6. Step 6: Final answer
    x = 418,867.45

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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.