Home / 863,400.40-1,294,582.20-443,496.40

Finding the Fourth Proportional to 863,400.40, 1,294,582.20 and 443,496.40

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Solution

The fourth proportional to 863,400.40, 1,294,582.20 and 443,496.40 is: 664,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,400.40 : 1,294,582.20 = 443,496.40 : x
  2. Step 2: Convert to fraction form
    863,400.40/1,294,582.20 = 443,496.40/x
  3. Step 3: Cross multiply
    863,400.40x = 1,294,582.20 × 443,496.40
  4. Step 4: Simplify right side
    863,400.40x = 574,142,545,204.08
  5. Step 5: Solve for x
    x = 574,142,545,204.08/863,400.40
  6. Step 6: Final answer
    x = 664,978.32

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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.