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Finding the Fourth Proportional to 520,442.92, 780,747.05 and 183,586.60

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Solution

The fourth proportional to 520,442.92, 780,747.05 and 183,586.60 is: 275,409.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,442.92 : 780,747.05 = 183,586.60 : x
  2. Step 2: Convert to fraction form
    520,442.92/780,747.05 = 183,586.60/x
  3. Step 3: Cross multiply
    520,442.92x = 780,747.05 × 183,586.60
  4. Step 4: Simplify right side
    520,442.92x = 143,334,697,804.43
  5. Step 5: Solve for x
    x = 143,334,697,804.43/520,442.92
  6. Step 6: Final answer
    x = 275,409.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.