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Finding the Fourth Proportional to 451,861.24, 623,585.10 and 272,978.68

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Solution

The fourth proportional to 451,861.24, 623,585.10 and 272,978.68 is: 376,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,861.24 : 623,585.10 = 272,978.68 : x
  2. Step 2: Convert to fraction form
    451,861.24/623,585.10 = 272,978.68/x
  3. Step 3: Cross multiply
    451,861.24x = 623,585.10 × 272,978.68
  4. Step 4: Simplify right side
    451,861.24x = 170,225,437,465.67
  5. Step 5: Solve for x
    x = 170,225,437,465.67/451,861.24
  6. Step 6: Final answer
    x = 376,720.60

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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.