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Finding the Fourth Proportional to 878,370.48, 1,317,633.48 and 247,289.76

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Solution

The fourth proportional to 878,370.48, 1,317,633.48 and 247,289.76 is: 370,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,370.48 : 1,317,633.48 = 247,289.76 : x
  2. Step 2: Convert to fraction form
    878,370.48/1,317,633.48 = 247,289.76/x
  3. Step 3: Cross multiply
    878,370.48x = 1,317,633.48 × 247,289.76
  4. Step 4: Simplify right side
    878,370.48x = 325,837,267,037.17
  5. Step 5: Solve for x
    x = 325,837,267,037.17/878,370.48
  6. Step 6: Final answer
    x = 370,956.53

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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.