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Finding the Fourth Proportional to 863,407.60, 1,296,277.80 and 548,479.60

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Solution

The fourth proportional to 863,407.60, 1,296,277.80 and 548,479.60 is: 823,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,407.60 : 1,296,277.80 = 548,479.60 : x
  2. Step 2: Convert to fraction form
    863,407.60/1,296,277.80 = 548,479.60/x
  3. Step 3: Cross multiply
    863,407.60x = 1,296,277.80 × 548,479.60
  4. Step 4: Simplify right side
    863,407.60x = 710,981,929,232.88
  5. Step 5: Solve for x
    x = 710,981,929,232.88/863,407.60
  6. Step 6: Final answer
    x = 823,460.36

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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.