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Finding the Fourth Proportional to 500,422.06, 750,861.83 and 272,376.05

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Solution

The fourth proportional to 500,422.06, 750,861.83 and 272,376.05 is: 408,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,422.06 : 750,861.83 = 272,376.05 : x
  2. Step 2: Convert to fraction form
    500,422.06/750,861.83 = 272,376.05/x
  3. Step 3: Cross multiply
    500,422.06x = 750,861.83 × 272,376.05
  4. Step 4: Simplify right side
    500,422.06x = 204,516,779,866.45
  5. Step 5: Solve for x
    x = 204,516,779,866.45/500,422.06
  6. Step 6: Final answer
    x = 408,688.58

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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.