Home / 863,846.20-1,296,417.30-442,905.40

Finding the Fourth Proportional to 863,846.20, 1,296,417.30 and 442,905.40

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Solution

The fourth proportional to 863,846.20, 1,296,417.30 and 442,905.40 is: 664,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,846.20 : 1,296,417.30 = 442,905.40 : x
  2. Step 2: Convert to fraction form
    863,846.20/1,296,417.30 = 442,905.40/x
  3. Step 3: Cross multiply
    863,846.20x = 1,296,417.30 × 442,905.40
  4. Step 4: Simplify right side
    863,846.20x = 574,190,222,823.42
  5. Step 5: Solve for x
    x = 574,190,222,823.42/863,846.20
  6. Step 6: Final answer
    x = 664,690.34

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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.