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Finding the Fourth Proportional to 520,750.08, 718,601.13 and 291,267.54

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Solution

The fourth proportional to 520,750.08, 718,601.13 and 291,267.54 is: 401,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,750.08 : 718,601.13 = 291,267.54 : x
  2. Step 2: Convert to fraction form
    520,750.08/718,601.13 = 291,267.54/x
  3. Step 3: Cross multiply
    520,750.08x = 718,601.13 × 291,267.54
  4. Step 4: Simplify right side
    520,750.08x = 209,305,183,376.32
  5. Step 5: Solve for x
    x = 209,305,183,376.32/520,750.08
  6. Step 6: Final answer
    x = 401,930.20

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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.