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Finding the Fourth Proportional to 662,859.76, 914,749.08 and 361,051.12

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Solution

The fourth proportional to 662,859.76, 914,749.08 and 361,051.12 is: 498,251.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,859.76 : 914,749.08 = 361,051.12 : x
  2. Step 2: Convert to fraction form
    662,859.76/914,749.08 = 361,051.12/x
  3. Step 3: Cross multiply
    662,859.76x = 914,749.08 × 361,051.12
  4. Step 4: Simplify right side
    662,859.76x = 330,271,179,852.97
  5. Step 5: Solve for x
    x = 330,271,179,852.97/662,859.76
  6. Step 6: Final answer
    x = 498,251.97

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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.