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Finding the Fourth Proportional to 448,580.50, 619,038.96 and 247,376.50

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Solution

The fourth proportional to 448,580.50, 619,038.96 and 247,376.50 is: 341,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,580.50 : 619,038.96 = 247,376.50 : x
  2. Step 2: Convert to fraction form
    448,580.50/619,038.96 = 247,376.50/x
  3. Step 3: Cross multiply
    448,580.50x = 619,038.96 × 247,376.50
  4. Step 4: Simplify right side
    448,580.50x = 153,135,691,288.44
  5. Step 5: Solve for x
    x = 153,135,691,288.44/448,580.50
  6. Step 6: Final answer
    x = 341,378.40

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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.