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Finding the Fourth Proportional to 482,852.61, 666,419.06 and 278,866.87

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Solution

The fourth proportional to 482,852.61, 666,419.06 and 278,866.87 is: 384,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,852.61 : 666,419.06 = 278,866.87 : x
  2. Step 2: Convert to fraction form
    482,852.61/666,419.06 = 278,866.87/x
  3. Step 3: Cross multiply
    482,852.61x = 666,419.06 × 278,866.87
  4. Step 4: Simplify right side
    482,852.61x = 185,842,197,370.54
  5. Step 5: Solve for x
    x = 185,842,197,370.54/482,852.61
  6. Step 6: Final answer
    x = 384,883.90

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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.