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Finding the Fourth Proportional to 520,228.75, 717,974.03 and 293,888.83

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Solution

The fourth proportional to 520,228.75, 717,974.03 and 293,888.83 is: 405,599.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,228.75 : 717,974.03 = 293,888.83 : x
  2. Step 2: Convert to fraction form
    520,228.75/717,974.03 = 293,888.83/x
  3. Step 3: Cross multiply
    520,228.75x = 717,974.03 × 293,888.83
  4. Step 4: Simplify right side
    520,228.75x = 211,004,546,177.64
  5. Step 5: Solve for x
    x = 211,004,546,177.64/520,228.75
  6. Step 6: Final answer
    x = 405,599.55

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Double scale
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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.